Speed

How to speed up typing and symbols on iPad

08/02/2022 by

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The undoubted advantage of a virtual keyboard in comparison with a physical one is that, if desired or necessary, you can easily expand its functionality. However, developers of the iOS platform (iPadOS) are trying to improve their product in a timely manner so that users do not have to turn to third-party software to add new features to standard applications.

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Starting with iOS 11 on iPad, a feature is available Keystrokes. The name, of course, is not very harmonious – but the benefits of such a “feature” are obvious, because it allows you not to switch to numbers and special characters once again.

The virtual keyboard in the updated platform has the same appearance, in addition to the fact that each key, in addition to letters, also shows numbers and special characters. With the new option, in order to select a letter, you just need to press the corresponding key. And to select, for example, some number, you should press the desired key and swipe down. A similar feature is available on the page with symbols.

So, in more detail:

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How to enable Keystrike on iPad

By default, the feature is already enabled. You can get to it (for example, if you want to disable this setting) like this: Settings → General → Keyboards → On keystroke. In the same place, you can activate or deactivate the slider to turn the function on or off accordingly.

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How to use the keystroke keyboard

Note right away that this feature is only available on iPads running iOS 11 or later. Neither on the iPhone nor on the iPod touch will it work. In addition, the function does not work with third-party keyboards.

It is very easy to work with scratching. Those characters (numbers, punctuation marks, special characters, etc.) that are grayed out on the keys are just accessible by striking. To type such a character without having to switch to another screen:

1. Press and hold your finger on the desired key.

2. Pull your finger down. The special character set is accompanied by an elegant system animation. By the way – if not one, but several characters are attached to the key at once (this happens in some languages), hold your finger and select the desired icon from the list.

Done – the special character is typed.

As a result, it will become much easier for you to type characters such as:

Numbers;
Punctuation marks;
Icons like @, # and even ₽.

Of course, they can also be reached in the “traditional” way – for example, the numbers are still opened by pressing the 123 key. But if you need to type just a couple of “numbers” – “strike” will still be faster.

If you don’t like the “keystroke” feature – for example, because the keyboard seems visually overloaded with characters, or if you tried it, but realized that you would still work in the old way – you can always turn it off in the settings (see the path to them). above).

In fairness, it should be said that this feature was available long before it was added to iOS 11. So, in some early versions of the Apple mobile platform, there were keys with several character options. For example, you could select a semicolon on your keyboard and swipe up to display a colon in your text.

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The speed of light: what is it and how was it measured?

19/01/2022 by

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The speed of light is one of the fundamental constants that characterize literally everything around us – space and time. It is this value that divides into before and after, cause and effect, and also imposes a lot of interesting restrictions on the possibilities of the universe known to us.

The data presented below and the examples given do not claim to be absolute scientific accuracy, but are intended to explain to the reader in the simplest possible language the main and most interesting facts regarding the speed of light.

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What is the speed of light and how is it measured

Curiously, the speed of light was considered endless until the second half of the 17th century, that is, such great scientists as Johannes Kepler or Rene Descartes, for example, perceived it in this way. Only in 1676, the Danish astronomer Olaf Remer, who observed the eclipses of Jupiter’s moon Io, noticed that they do not coincide with the calculated ones in time and this discrepancy depends on the distance between the event and the observer. Taking into account the position of the Earth in its orbit relative to Jupiter, Roemer calculated the speed of light to be 220,000 km/s (mistaken by ~80,000 km/s).

At the beginning of the 19th century, scientists measured the speed of light using a practical “interruption method” and by 1950 they had achieved a result of 299,793.1 km / s with an error of 0.25 km / s, and the invention of the laser later made it possible to reach the limit of accuracy and fix the speed of light by mark 299 792 458 m/s with an error of 1.2 m/s.

Further refinement of one of the basic quantities of the theory of relativity became impossible due to the lack of an accurate definition of the meter – at that time it was equal to the length of a metal stick, which was the standard and stored in Paris. The issue was only resolved in 1983, when the General Conference on Weights and Measures redefined the meter as the distance traveled by light in 1/299,792,458 of a second. Accordingly, the speed of light became officially equal to 299 792 458 meters per second (or roughly: 300,000 km/s).

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What is the fundamentality of the speed of light

In fact, modern science knows only a few objective fundamental constants that remain unchanged. under any conditions. The speed of light does not depend on the observer, nor on the method of measurement, nor on time – it is really constant.

To prove the opposite, one can, for example, pass a beam of light through a complex inhomogeneous medium and it will pass through it much more slowly than through a vacuum. However, upon careful consideration of the experimental conditions, it turns out that the photons were moving at the same speed of light, but along a more complex trajectory.

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Why can’t anything overcome the speed of light?

If you create or discover an object that has a non-zero mass or has the property of interacting with other particles in some way, then you will invent time Machine. Nothing like this has ever been seen in the known world. Simplifying the scientific language, we describe the situation as follows:

Imagine events X and Y, where event X is the cause of event Y, and Y, respectively, is a consequence of X. For example, event X is a supernova explosion in a distant galaxy, and Y is the detection of its particles by astronomers on Earth. If the distance between X and Y is greater than the time between them (T) times the speed of light (C), then in different frames of reference we get three different results:

1. Event X happened before event Y;
2. Event Y happened before event X;
3. Events X and Y happened at the same time.

Obviously, the last two options are hardly possible from the point of view of modern science, which means that nothing can move or transmit information faster than the speed of light.

However, what about this situation: you take a very powerful flashlight, point it at Mars, and move your finger in a beam of light – if you do this fast enough, then the shadow from your finger “runs” on the surface of Mars faster than the speed of light, which refutes our theory.

Not really. The movement of the shadow cannot be called the movement of an object with mass, just as the shadow itself does not interact with anything, but is only the absence of light. Photons from your flashlight will reach Mars at the speed we already know of 299,792,458 meters per second.

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near-light speed

According to the postulates of the general theory of relativity, the faster we accelerate a particle with a certain mass, the more energy we need for this. At the same time, as it approaches the speed of light, this energy will tend to infinity.

However, this does not mean at all that light is orders of magnitude faster than anything else in the universe. For example, CERN scientists accelerated protons at the Large Hadron Collider to a speed of 299,792,455 m/s, which is only 3 m/s behind the weightless photons of light.

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FTL

The limitations described above, which modern physics imposes on speeds in the Universe, do not apply to particles that have no mass, do not interact with ordinary particles, and can travel faster than the speed of light. Such particles are usually called tachyons and at the moment their existence is only an assumption (it is difficult to come up with an effective tool for detecting them, because they do not interact with anything).

Another popular example of superluminal speed is quantum mechanical phenomena. At the very moment when you put one sock on your right foot, the second instantly and automatically became left, regardless of the distance between them. Approximately according to this principle, quantum communication is carried out when measuring the spin of photons, while information is not transmitted, however, in fact, one state passes into another without direct interaction between objects.

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The speed of light is visual

Astrophysicists in most cases are deprived of the opportunity to conduct full-fledged experiments in laboratories, as, for example, biologists or chemists do, due to the scale of the processes under study. At the same time, each astronomer has access to the largest test site, where grandiose tests are constantly taking place – this is the entire observable Universe with quasars, radio pulsars, black holes and other curious objects.

However, the most interesting astrophysical discoveries these days look like obscure complex graphs, and the public is forced to be content with processed images of only a few instruments, such as the Hubble telescope. Nevertheless, official science is now aware of the importance of media activities and is trying in every possible way to visualize for the layman processes that cannot simply be imagined in the head.

For example, NASA employee James O’Donoghue demonstrated the speed of light relative to our planet (eliminating the influence of the atmosphere in his calculations) – a beam of light circles the Earth 7.5 times in just one second, each time overcoming more than 40 thousand kilometers.

The distance to the Moon is about 384,000 kilometers (depending on the current location of objects) and photons will need 1.22 seconds to overcome it.

When transmitting data from Mars to Earth at the speed of light, at the moment of closest approach of the planets, you will have to wait more than six minutes, and at an average distance, the waiting time will drag on to half an hour.

At the same time, an average of 254 million km separates us from the “red planet”, the New Horizons probe, for example, has already flown away from the Earth by 6.64 billion km, and to get to the nearest planet not in the solar system, you need to fly 39.7 trillion km .

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USB history: USB 1.0 to USB-C + speed table

10/12/2021 by

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We offer remember why at all to light a USB interface and how he changed the world of computing.

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What is USB (Universal Serial Bus)?

USB stands for “Universal Serial Bus”, but users 90 first part would cause unless a sad laugh. At that time, to connect to a computer mouse or keyboard needed a PS / 2 interface for other external devices – serial ports, parallel ports, etc. And attempts to create something universal ended with the advent of the next specialized (and very few people want) interface.

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The birth of a hero

Therefore, when a number of companies have joined forces and in 1995 created a USB 1.0, it is an important milestone in the history of personal computers. For example, with the introduction of USB manufacturers have begun to reduce the number of “mandatory” port in laptops, to eventually reduce their size and to turn from the rather impressive suitcases in modern ultrabooks. A connectors miniUSB and microUSB later helped in the same way the development of technology for smartphones and tablets.

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USB 2.0: and screw up …

USB 1.0 was useful mainly for its versatility. Interface speed only enough to transfer small files, so by the beginning of the 2000s was designed USB 2.0 standard. However it came into the world, and USB-drives or “USB drive”, and this is where users went to the full. In just a few minutes on a flash drive could not copy a couple of files, and the whole season of the show or the Windows installation files. In addition, unlike the CD, you can do it once was, and spoil the stick was harder than scratch the CD. Even the CD-drives and other peripherals using USB are now could not be embedded in personal computers or laptops, but simply connect to them as needed. Into the hands of users and manufacturers played and the fact that the majority of USB-devices are “hot” setting, and were ready to work immediately after connection, without the need to restart the computer.

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USB 3.0 / 3.1: only stars above

With received in 2013 the mass distribution of USB 3.0 standard, it seems, slept last restrictions. Given the speed of the standard, which is more then a few times have increased with the advent of USB 3.1, users can in a few minutes to transfer to each other the entire collection of high-resolution pictures, movies in 1080p resolution and music in lossless-format. And could not throw, but just look, for example, video of impressive dimensions directly from a flash drive or external hard drive.

USB speed depending on interface generation

USB 1.0 – up to 1.5 Mbps
USB 1.1 – up to 12 Mbps
USB 2.0 – up to 480 Mbps
USB 3.0 / USB 3.1 Gen 1 – up to 5Gbps
USB 3.1 Gen 2 – up to 10 Gbps

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USB-C: symmetry glory

By the way, in the same 2013, the USB Type-C interface was born (later it was called simply USB-C), which has gained popularity now. It is popular mainly because of the miniature size, the symmetry of the connector, which can be inserted by either side, and the ability to do everything at once – transfer data, sound and image, charge connected gadgets and provide Internet access. USB 1.0 with this load would definitely failed. In addition, for the first time in many years, USB-C has allowed PC and Apple technology standards to “meet” because USB-C cables are compatible with Thunderbolt 3 connectors, which evolved alongside USB and were used primarily in MacBooks.

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DISCOUNT (459r → 179r) [Игра года по версии Apple] Review of the game Thumper for iPhone and iPad – a psychedelic adventure at breakneck speed

06/12/2021 by

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It would seem that rhythm games have already exhausted themselves, despite recent attempts to “revive” such famous brands as Rock Band and Amplitude. It is precisely because of the stagnation of the genre that the emergence of new projects raises some doubts, but in the case of Thumper, they are unfounded. It’s an arcade rhythm game with breakneck speed, psychedelic graphics and one-touch controls. Thumper is just like any other rhythm game, but it has a lot more to offer.

Download Thumper for iPhone and iPad (App Store)

Imagine that you are a chrome beetle racing at high speed along a neon track through a psychedelic void filled with floating cables, rainbow halos and laser beams. And all this is accompanied by a rumbling soundtrack. The only way to survive on the high-speed, dangerous track is to completely immerse yourself in the rhythm and play on your instincts, trying to fit into the corners and hit the markers at the right time. Failed to turn, jump or change rails in time, and you will face inevitable death. Success – to hold out long enough before meeting the main boss, in the role of which is a floating head with fiery eyes and spiked tentacles protruding from all sides.

In Thumper, you need not so much to create music as to overcome obstacles thrown up by the game at great speed. Seemingly simple, one-button control practically gives no room for error. If you do not hold on to a turn or do not have time to press the button, you crash (video of the gameplay at the end of the article). On the “spiked” areas you will need to jump, and a series of obstacles can be passed only by holding the “bit” button. At times, the track splits into several lanes, with metal tentacles blocking the path, forcing you to move from side to side.

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One of the differences between Thumper and other rhythm games is that it doesn’t force you to create your own melodies. For example, you don’t have to click on the “beat” icon (for lack of a better term) every time it appears on the track, except for boss fights on every level. But such moments in the game do not appear often.

Thumper is an extremely fast game. It offers only nine levels, but they are long lasting and ruthless. In some cases, you will have to go through three turns in just a second, jump over the hole and land on the marker.

You can also score points and improve your rating using other methods, for example, jumping to get on a floating circle, but extra movements here are akin to calling fate. Couldn’t press the button at the right moment, lost concentration for half a second and now you crash into a barrier.

Thumper can be played in both regular and virtual reality, with the latter offering a level of immersion far beyond other games. Thumper literally stuns you with a cacophony of sounds and a psychedelic picture, so much so that in moments of rest you will not even be able to remember what happened in the past seconds.

Thumper’s only drawback is the repetition of the music tracks. The levels are divided into several dozen segments, and at times each of them resembles the stages already passed. In general, the problem is not so noticeable against the background of changing shapes and bright colors, but I would like more musical variety.

However, music is not the main thing in Thumper. The project benefits from a combination of breakneck speed, simple controls and a mesmerizing atmosphere. The game is more enjoyable in VR mode, when external stimuli do not distract from the virtual world. However, no matter how you play, Thumper is too good to pass by.

To download the game, you need an iPhone, iPad or iPod touch with iOS 11.0 or higher.

Download Thumper for iPhone and iPad (App Store)

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Wi-Fi speed: how to check on your computer, iPhone or iPad and how to avoid mistakes

09/08/2021 by ALOK DAS

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Almost every Internet user faces Wi-Fi network problems from time to time. Perhaps the connection speed drops for no apparent reason, or it seems that it does not match the tariff you are paying. There are quite a few online services for testing Wi-Fi connection speed. They work in any browser and allow you to get an accurate picture of the speed of your Internet connection.

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How Wi-Fi Speed Tests Work

Most tests measure three things:

Ping speed (parameter of the quality of the Internet connection);
Download speed (download from the Internet);
Download speed (upload a file from the device to the Internet).

Let’s take a look at each of the above elements.

Ping speed

The ping rate provides information about the network latency. Ping – check the speed of sending and returning data packets to the server. The number of sent and received packets is also checked. High latency leads to latency, which many users of online games would certainly like to avoid. Ping more than 150ms is considered too high and can lead to latency, while ping less than 20ms is considered very low latency.

Download speed

Download speed is the most important metric for how quickly data is downloaded to your computer, smartphone, or tablet. Download speed is measured in megabits per second. During testing, various pieces of data are loaded onto the device. As they are loaded, the size and number of connections are adjusted. Thus, the maximum connection speed is achieved. In order to compare the results, you need to know the speed of the service you are using. For example, a bandwidth of 25 Mbps is usually recommended for receiving 4K video, or 5 Mbps for HD video.

Here, it is important to understand that the speed of 1 Mbit / s does not mean that files will be downloaded at a speed of 1 MB (megabyte) / s.

1 megabyte = 8 megabits

In other words, to find out the maximum download speed in megabytes, divide the value in megabits by 8.

For example, at a speed of 25 Mbps, the maximum download speed will be 3.13 Mbps.

Download speed

Upload speed determines how quickly data is uploaded, such as when you copy files to a cloud service. As a rule, the download speed is lower than the download speed, and Internet providers are not so active in focusing on this parameter. The download speed test works similarly to the one described above, but in reverse order – your browser downloads the data with some modifications to ensure the maximum connection speed.

The three tests described above will allow you to get a complete picture of the Wi-Fi connection speed: whether the speed is as promised by the provider, whether it will be sufficient for your purposes and how strong the signal of the router used is.

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Common test mistakes

Do not test just once

If you want to get a clear idea of your actual internet speed, do not stop at just one test run, as speeds can vary. You can run the same test twice under the same conditions and get different results. Do at least three tests on different days and then you can display an average that will show the actual speed of the Internet connection.

Do not test during peak hours

One of the most important factors affecting connection speed is the number of users simultaneously connected to the network. During peak hours, for example, Sunday evening, when the load on the network increases, the Internet speed is likely to be slow and this will be reflected in the test. If you want to evaluate performance during “peak” and “off-peak” periods, test the speed at that time and compare the results. To assess overall speed, testing is best done during off-peak hours.

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Don’t test in the wrong place

The speed test results may be affected by the location where you are testing. The choice of location depends on your purpose.

If you just need to measure the speed of Wi-Fi: test so that you can see the router. In other words, check the speed in the room where the router is located so that physical objects do not block the signal.

If you are trying to find the best location for your router: run tests in each room and then compare the results. This way you can identify the room where the signal is weakest.

If you want to identify blind spots or areas with the weakest Wi-Fi coverage: test at that location and compare the result with a test conducted under ideal conditions. If the problem is confirmed, take steps to expand your Wi-Fi coverage.

During testing, do not download files to other devices

The test measures the Internet speed only on the device on which it is carried out, so try to maximize the bandwidth available for this device. Many users have many services connected to their wireless network, which slows down their internet speed. When running a test, disable them, or at least make sure that no files are being loaded or unloaded.

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Remember to restart your computer

Testing can be done on any device with a browser, from a computer to an Amazon Fire TV Stick, but in any case, be sure to restart your device first.

For a long time, devices that have not rebooted are running residual background processes that can slow down their work and, in particular, affect the Ping rate. Restart your device and do not open any other applications until you have tested it. Watch for applications that start at system startup (for example, a cloud application will connect to the Internet to synchronize data). You can also temporarily disable your antivirus.

Use the right testing tools

There are a large number of online services available on the web to check the speed of the Internet, but which one is better? If your ISP offers a service, start there.

Try to give preference to services using HTML5 over Adobe Flash technology. While any modern browser supports HTML5, Flash is a separate system that can affect speed. Alternatively, you can use the Speedtest.net application, available in both Windows and Mac versions.

Do not test internet speed with VPN enabled

Make sure you don’t have VPNs, proxies, backup apps, or other utilities connected. They often slow down the connection speed, so the test results will be inaccurate.

Why Test Wi-Fi Speed?

Testing Wi-Fi speed is useful for many reasons, and the results will help in the following cases:

You can make sure you are getting exactly the speed you pay for;
Look for a new internet provider;
Set up a new router and check coverage in your home;
Check if the internet speed meets your needs;
Check that the connection speed is sufficient for the normal functioning of Apple TVs or game consoles;
You will be able to determine which hours are “peak” and which are not.

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How to change the speed of hiding and showing the Dock in macOS

28/05/2021 by ALOK DAS

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MacOS users actively work daily with the Dock panel, which serves for quick access to frequently used programs, files and folders. Despite all its benefits, the Dock eats up some screen space, which is especially critical for owners of Macs with small displays.

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The macOS developers have provided the ability to automatically hide the Doc panel. To do this, go to the application System settings, open section Menu bar and Dock and include paragraph “Automatically show or hide the Dock”… After that, the panel with shortcuts will constantly hide behind the edge of the screen at which it is located and appear when you move the cursor.

The system does not allow adjusting the speed of Doc panel appearing and hiding. You can change this setting through macOS Terminal. This can be done so that the “shelf” appears and disappears faster, or vice versa, to set a certain delay. To do this, start the Terminal and enter the following command:

defaults write com.apple.dock autohide-time-modifier -float 0.1; killall Dock

Press Return (Enter)

In this command, the value “0.5” is the same delay equal to half a second. You can set it to zero, then the panel will appear and disappear instantly. To restore the default setting for opening the panel speed, enter the following command:

defaults write com.apple.dock autohide-time-modifier -float 0.7; killall Dock

Press Return (Enter)

As you can see, the initial delay is 0.7 seconds. Try changing this indicator until the animation is comfortable enough for you.

If desired, using this instruction, you can remove the Dock display delay altogether.

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Transcend ESD350C Review: Shock-Resistant External SSD with Impressive Speed

23/05/2021 by ALOK DAS

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Until recently, USB sticks seemed to be indispensable helpers. With this tool, it was easy to transfer large amounts of information. However, this product, oddly enough, quickly became outdated.

Each of us has almost a dozen flash drives lying around at home. The volume of information is growing – films of tens of gigabytes are no longer surprising. Along with this, a high data transfer rate is also required – waiting for a slow media to fill is already tiresome. Such realities opened the way to the market for a new type of drives – external SSD-drives. They provide both the required volume and the speed of copying / reading. We will consider one of such devices, Transcend ESD350C.

Video review:

In the meantime, there is no need to know about it. ”

Transcend ESD350C

Transcend is considered the pioneer of the external SSD market, having started to release them even before such a product became mainstream. The ESD350C uses the best practices, from the choice of the internal storage format to the case. This allowed us to create a compact, productive device. The line offers three sizes: 240, 480 and 960 GB. This is the optimal set, because a smaller drive loses its meaning, and large volumes will lead to a sharp rise in the cost of the device. Transcend ESD350C is a balanced, reliable solution for storing and transporting heavy HD video and other high-volume content.

Design and dimensions Transcend ESD350C

Transcend traditionally prefers to choose a strict design for its drives, not being afraid to repeat elements of other models. ESD350C resembles an external StoreJet 25M3S drive, reduced several times and lacking a backup button.

The drive received a multilayer oblong rectangular case with a logo on the front side. The main aluminum part is designed to improve cooling of the disk itself and its bridge. A blue silicone case is stretched over it, which, in theory, can mitigate the consequences of a fall of the device. Such protection allows the device to sit more pleasantly in the hand without feeling its heating. And the appearance of ESD350C becomes more presentable than that of a simple iron box.

On the side of the device, there is a USB Type-C port and an LED for indicating operation.

Functionality Transcend ESD350C

Thanks to the USB Type-C port, Transcend ESD350C is perfect for most modern devices: computers, laptops, mobile devices (subject to OTG support) and even game consoles. The device can act as a tool for transferring large amounts of data, and as a high-speed storage for backups. Having a Transcend ESD350C on hand, it is no longer necessary to overpay for devices with a large amount of internal memory, because this external drive itself is quite fast.

Transcend ESD350C Baud Rate

Transcend ESD350C transmits data via a modern USB 3.1 gen2 interface, which makes it stand out from much slower SSD drives. It’s no secret that most of them still adhere to the USB 2.0 standard. The device we are considering has a new standard for SSD storage – NVMe. This allows you to fully load the USB 3.1 gen2 interface with work and achieve real read / write speeds of 900 MB / s. And competitors based on conventional SATA SSDs will hit their 600 MB / s interface ceiling. Selective readings on the Transcend ESD350C are ten times that of a conventional hard drive, making it an excellent choice for gaming. During testing, our drive really shows excellent results, almost the maximum for its NVMe-USB bundle. For example, it only takes 30 seconds to copy a 20 GB file!

Transcend ESD350C Package Contents

It is difficult to think of how to diversify the set of such a device. The box comes with two USB Type-C male-to-male data cables and a USB Type-C to USB Type-A cable. Both of them support the USB 3.1 gen2 standard. It is better to use these cables, as they will definitely provide the maximum speed of the Transcend ESD350C. There are also several product brochures available here.

Technical Specifications (Specifications) Transcend ESD350C

Dimensions: 96.5mm x 53.6mm x 12.5mm;
Weight: 87 g;
Color: Blue;
Interfaces: USB Type C – USB Type A / USB Type C – USB Type C;
Connection interface: USB 3.1 gen2;
Connection indicator: there is;
Default file system: exFAT;
Memory: type 3D;
Capacity: 240/480/960 GB;
Working temperature: 0 ° C ~ 60 ° C;
Working voltage: 5B;
Guarantee: 36 months;
Performance: Read speed (max.) 1050 MB / s / Write speed (max.) 950 MB / s;
System requirements: Windows 7, Windows 8, Windows 10, Mac OS X 10.5 or later.

Software

Transcend has developed an entire software package called Transcend Elite specifically to work with its devices. You can install a branded application on different operating systems. It knows how to work with backups, set up data encryption, lock the drive itself, and set up backups to the cloud.

Download Transcend Elite for Windows and Mac

Download Transcend Elite for Android

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How to speed up typing and typing on iPad

26/02/2021 by ALOK DAS

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The undoubted advantage of a virtual keyboard in comparison with a physical one is that, if desired or necessary, you can easily expand its functionality. However, the developers of the iOS (iPadOS) platform are trying to improve their product in a timely manner so that users do not have to turn to third-party software to add new features to standard applications.

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Starting with iOS 11, iPad has a feature Striking keys… The name, of course, is not very euphonic – but the benefits of such a “feature” are obvious, because it allows you to avoid switching to numbers and special characters once again.

The virtual keyboard in the updated platform has the same appearance, in addition to the fact that on each key, in addition to letters, there are also numbers and special symbols. With the new option, in order to select a letter, you just need to press the corresponding key. And to select, for example, any number, you should press the desired key and slide your finger down. A similar feature is available on the page with symbols.

So, in more detail:

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How to enable Strike Keys on iPad

The function is already activated by default. To get to it (for example, if you want to disable this setting) you can do this: Settings → General → Keyboards → On striking keys… There, you can also activate or deactivate the slider to enable or disable the function, respectively.

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How to use a striking keyboard

Immediately, we note that this feature is only available on iPad with iOS 11 or later. Neither the iPhone nor the iPod touch will be able to scratch. In addition, the function does not work with third-party keyboards.

Striking is very simple to work with. Those symbols (numbers, punctuation marks, special characters, etc.), which are highlighted on the keys in gray, are just accessible by striking. To type such a character without having to switch to another screen:

1. Press and hold your finger on the desired key.

2. Pull your finger down. The set of special symbols is accompanied by graceful system animation. By the way – if not one, but several symbols are attached to a key (this happens in some languages), hold your finger and select the desired icon from the list.

Done – special character typed.

As a result, it will become much easier for you to type characters such as:

Numbers;
Punctuation marks;
Badges like @, #, and even ₽.

Of course, you can get to them in the “traditional” way – for example, the numbers are still opened by pressing the 123 key. But if you need to dial literally a couple of “numbers”, “striking” will still be faster.

If you do not like the “keystroke” function – for example, because the keyboard seems visually overloaded with symbols, or if you tried it, but realized that you will still work the same way – you can always disable it in the settings (see the path to them. higher).

To be fair, it should be said that such a feature was available long before it was added in iOS 11. For example, in some early versions of Apple’s mobile platform, there were keys with multiple character variants. For example, you could have selected a semicolon on the keyboard and swipe up to display a colon in the text.

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The speed of light: what is it and how was it measured?

12/02/2021 by ALOK DAS

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The data set out below and the examples given do not pretend to be absolute scientific accuracy, but are designed to explain to the reader the main and most interesting facts regarding the speed of light in the simplest possible way.

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What is the speed of light and how was it measured

Curiously, the speed of light was considered endless up to the second half of the 17th century, that is, such great scientists as Johannes Kepler or Rene Descartes, for example, perceived it as such. Only in 1676 the Danish astronomer Olaf Roemer, who observed the eclipses of Jupiter’s moon Io, noticed that they did not coincide with the calculated ones in time and this discrepancy depended on the distance between the event and the observer. Taking into account the position of the Earth in its orbit relative to Jupiter, Roemer calculated the speed of light equal to 220,000 km / s (error by ~ 80,000 km / s).

At the beginning of the 19th century, scientists measured the speed of light by a practical “interruption method” and by 1950 reached a result of 299,793.1 km / s with an error of 0.25 km / s, and the invention of the laser later allowed to reach the accuracy limit and fix the speed of light at mark 299 792 458 m / s with an error of 1.2 m / s.

Further refinement of one of the basic quantities of the theory of relativity became impossible due to the lack of an accurate definition of the meter – at that time it was equal to the length of the metal stick, which was the standard and stored in Paris. The question was only lifted in 1983, when the General Conference on Weights and Measures redefined the meter as the distance that light travels in 1/299 792 458 seconds. Accordingly, the speed of light became officially equal 299 792 458 meters per second (or roughly: 300,000 km / s).

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Why is the speed of light fundamental?

In fact, modern science knows only a few objective fundamental constants that remain unchanged. under any conditions… The speed of light depends neither on the observer, nor on the method of measurement, nor on time – it is really constant.

To prove the opposite, you can, for example, send a beam of light through a complex inhomogeneous medium and it will pass through it noticeably slower than through a vacuum. However, upon closer examination of the experimental conditions, it turns out that the photons moved at the same speed of light, but along a more complex trajectory.

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Why nothing can overcome the speed of light?

If you create or discover an object that has a nonzero mass or has the property of interacting in some way with other particles, then you will invent time Machine… At the same time, nothing like this has ever been observed in the world known to us. Simplifying the scientific language, we describe the situation as follows:

Imagine events X and Y, while event X is the cause of event Y, and Y, respectively, is a consequence of X. For example, event X is a supernova explosion in a distant galaxy, and Y is the registration of its particles by astronomers on Earth. If the distance between X and Y is greater than the time between them (T) multiplied by the speed of light (C), then in different frames of reference we get three different results:

1. Event X happened before event Y;
2. Event Y happened before event X;
3. Events X and Y happened simultaneously.

Obviously, the last two options are hardly possible from the point of view of modern science, which means that nothing can move or transmit information faster than the speed of light.

However, how about this situation: you take a very powerful flashlight, point it at Mars, and move your finger in the beam of light – if you do this fast enough, then the shadow from your finger “runs” on the surface of Mars faster than the speed of light, which refutes our theory.

Not really. The movement of the shadow cannot be called the movement of an object with mass, just as the shadow itself does not interact with anything, but is only the absence of light. The photons from your flashlight will fly to Mars with the speed already known to us 299 792 458 meters per second.

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Near-light speed

According to the postulates of general relativity, the faster we accelerate a particle with a certain mass, the more energy we need for this. Moreover, as it approaches the speed of light, this energy will tend to infinity.

However, this does not mean at all that light is orders of magnitude fastest in the universe. For example, CERN scientists accelerated protons in the Large Hadron Collider to a speed of 299 792 455 m / s, which is only 3 m / s inferior to weightless photons of light.

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Superluminal speed

The restrictions described above, which are imposed on the speed in the Universe by modern physics, do not apply to particles that have no mass, do not interact with ordinary particles and can travel faster than the speed of light. Such particles are usually called tachyons and at the moment their existence is only an assumption (it is difficult to come up with an effective tool for detecting them, because they do not interact with anything).

Another popular example of superluminal speed is quantum mechanical phenomena. The very moment you put one sock on your right leg, the second instantly and automatically became the left, regardless of the distance between them. Approximately according to this principle, quantum communication is carried out when measuring the spin of photons, while information is not transmitted, however, in fact, one state passes into another without direct interaction between objects.

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The speed of light is clear

Astrophysicists in most cases are deprived of the opportunity to conduct full-fledged experiments in laboratories, as, for example, biologists or chemists do, due to the scale of the processes being investigated. At the same time, each astronomer has access to the largest testing ground where grandiose tests are constantly taking place – this is the entire observable Universe with quasars, radio pulsars, black holes and other curious objects.

However, the most interesting astrophysical discoveries these days look like obscure complex graphs, and the public is forced to be content with processed images of only a few instruments, such as the Hubble Telescope. Nevertheless, official science now realizes the importance of media activity and in every possible way tries to visualize processes for the layman that cannot be simply imagined in the head.

For example, NASA employee James O’Donoghue, demonstrated the speed of light relative to our planet (by eliminating the influence of the atmosphere in his calculations) – a ray of light flies around the Earth 7.5 times in just one second, each time overcoming more than 40 thousand kilometers.

In the meantime, there is no need to know about it. ”

The distance to the Moon is about 384,000 kilometers (depending on the current location of objects) and it will take photons 1.22 seconds to overcome it.

When transmitting data from Mars to Earth at the speed of light at the moment of the closest approach of the planets, you will have to wait more than six minutes, and with an average distance, the waiting time will drag on to half an hour.

At the same time, we are separated from the “red planet” by an average of 254 million km, the New Horizons probe, for example, has already departed 6.64 billion km from the Earth, and to get to the nearest planet not in the solar system, it is necessary to fly 39.7 trillion km …

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How to slow down and speed up YouTube videos on iPhone and iPad

03/12/2020 by ALOK DAS

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If you are used to listening to podcasts or various videos from YouTube during your workout or walk, then you probably need the option to increase the speed of content playback. Thanks to this function, you can listen to much more useful material.

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How to speed up or slow down YouTube video playback on iPhone and iPad

1… Open the YouTube app on your iOS (iPadOS) device.

2… Find the video you want, tap the play button and tap the screen.

3… Click on the three dots in the upper right corner of the screen. If they are not visible to you, click again on the video to open the buttons for control.

4… In the menu that opens, select Play speedand then the required value:

0.25 (lowest speed)
0.50 (low speed)
0.75 (fairly low speed)
1 (normal speed)
1.25 (fast playback)
1.5 (even faster playback)
2 (fastest)

The function will appeal to users accustomed to adjusting the playback speed on stationary computers. For example, it can be used to rewind boring dialogues or long panoramas. If, on the contrary, you want to enjoy the picture, you can slow down the video.

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How to find out Wi-Fi parameters (speed, channel, etc.) in macOS in one click

24/09/2020 by ALOK DAS

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Menu bar (macOS element where date and time are located, quick access to functions like Bluetooth and Wi-Fi and so on) has more capabilities than it seems at first glance. With the press of just one button, you can get additional – and sometimes very important – information.

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So, for example, when testing Wi-Fi networks on macOS, you may find useful additional information available at the press of a key ⌥Option (Alt)… Here’s how it works.

With the release of macOS Big Sur, the Control Center icon appeared in the menu bar, which displays quick options for Wi-Fi, Bluetooth, display and sound settings, and function switches Do not disturb and Screen Repeat…

Discover Command centreby clicking on the corresponding button in the macOS menu bar, on the keyboard, press and hold the Option (Alt) button, and then click on the Wi-Fi section.

As you can see in the screenshot above, this option provides much more useful information about the capabilities of the wireless network. Delighted with our knowledge of such subtleties, macOS brings down a mountain of statistics on us: here information from the category “once a year, let it come in handy” (for example, IP address, channel characteristics), and terms that only specialists understand (RSSI, MCS index), and quite specific values (for example, the network speed expressed in megabits).

Let’s also pay attention to additional functions – for example, Open Wireless Diagnostics… A very useful thing if you have problems with wireless connection. The system will check the wireless module, put the report on the desktop … and at the same time send it to Apple for the benefit of humanity.

Normal press without key:

With the ⌥Option (Alt) key held down:

In older versions of macOS this works directly from the menu bar, i.e. ⌥Option (Alt) + click on wifi icon in menu bar…

Normal press without key:

With the ⌥Option (Alt) key held down:

If you don’t mind continuing to explore other valuable macOS features, check out a few “related” articles below.

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DISCOUNT (379р → 149р) [Игра года по версии Apple] Thumper game review for iPhone and iPad – crazy speed psychedelic adventure

13/07/2020 by ALOK DAS

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It would seem that rhythm games have already exhausted themselves, despite recent attempts to “revive” such famous brands as Rock Band and Amplitude. It is because of the stagnation of the genre that the appearance of new projects raises some doubts, but in the case of Thumper they are unfounded. This is an arcade rhythm game with breakneck speed, psychedelic graphics and one-touch control. Thumper is like any other rhythm game, but has much more to offer.

Download Thumper for iPhone and iPad (App Store)

Imagine that you are a chromed beetle rushing at high speed along a neon track through a psychedelic void filled with soaring cables, rainbow ghosting and laser beams. And all this is accompanied by a rattling soundtrack. The only way to survive on a high-speed dangerous track is to completely immerse yourself in the rhythm and play on instincts, trying to fit into the turns and hit the markers at the right time. It was not possible to turn, jump or change the rails in time and you will inevitably die. Success is to hold out long enough before meeting with the main boss, whose role is a soaring head with fiery eyes and spiked tentacles protruding from all sides.

In Thumper, you need not so much to create music as to overcome obstacles thrown by the game at high speed. Simple, it would seem, control with one button practically gives no room for error. If you didn’t stay on the turn or didn’t have time to press the button, you break (gameplay video at the end of the article). On the “spiky” areas you will need to jump, and a series of obstacles can be completed only by holding the “bit” button. At times, the track is divided into several bands, the path on which metal tentacles block, forcing you to move from side to side.

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One of the differences between Thumper and other rhythm games is that it does not force you to create your own tunes. For example, it is not necessary to click on the “bit” icon (for lack of a better term) every time it appears on the track, with the exception of the battle with the bosses at each level. But such moments in the game appear infrequently.

Thumper is an extremely fast game. It offers only nine levels, however they are long and ruthless. In some cases, you just have to go through three turns in just a second, jump over a hole and land on a marker.

You can also score points and improve the rating due to other ways, for example, jumping to get into the soaring circle, but the extra movements here are akin to the challenge of fate. They couldn’t press the button at the right time, they lost concentration for half a second and now you crash into the barrier.

Thumper can be played in both regular and virtual reality modes, the latter offering a level of immersion that is significantly higher than other games. Thumper literally stuns you with a cacophony of sounds and a psychedelic picture, so much so that in moments of peace you can’t even remember what happened in the past seconds.

Thumper’s only drawback is the repetition of music tracks. The levels are divided into several dozen segments and each of them at times resembles already completed stages. In general, the problem is not so noticeable against the background of changing shapes and bright colors, but I would like more musical diversity.

However, music in Thumper is not the main thing. The project benefits from a combination of frantic speed, simple controls and a mesmerizing atmosphere. The game gives more pleasure in VR mode, when external stimuli do not distract from the virtual world. However, no matter how you play, Thumper is too good to pass.

The game is offered in the App Store at a price of 379 rubles. To download it, you will need an iPhone, iPad or iPod touch based on iOS 11.0 and above.

Download Thumper for iPhone and iPad (App Store)

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How to check the speed of SSD, HDD, or USB stick on Mac (macOS)

09/06/2020 by ALOK DAS

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Checking the read and write speeds of a hard drive, a USB flash drive, or an external drive (SSD, HDD) can be very useful. For example, the speed of the system hard drive directly reflects the failure of your computer.

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And the speed of the “flash drive” or other external drive may indicate the possibility of launching the OS, program or media file directly from it. For all such measurements, the free Blackmagic Disk Speed Test utility for macOS is ideal.

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How to check the speed of SSD, HDD, or USB stick on Mac (macOS)

1. Download the Blackmagic Disk Speed Test application from the Mac App Store (link at the end of the article).

2. Launch the application. The main window of the program is a “dashboard with two speedometers.” The left one is responsible for writing speed, the right one is for reading speed. Below is a list of file types (video of various formats) used for performance tests.

3. Click on the settings icon located in the middle to select the hard drive, USB flash drive or other drive whose read and write speed you want to test.

4. Press the center key labeled Start to start testing.

After testing, the results will be presented in the lower right corner of the screen. In fact, without a table with the results, the capabilities of your drive will be clear. It is enough to take a look at the “speedometers” during the test.

Download Blackmagic Disk Speed Test from the Mac App Store

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How to increase Face ID speed on iPhone or iPad

26/05/2020 by ALOK DAS

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Owners of the latest iPhone or iPad models with TrueDepth cameras can use Face ID technology. It allows you to recognize faces, which makes it possible not only to unlock the device, but also confirms tasks such as payment or authorization on the website.

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Face ID technology was first introduced on the iPhone X and has proven to be excellent ever since. But this Apple chip got improved software for the iPhone XS and newer models, so recognition is even faster thanks to new algorithms and an improved processor. But there is another technique that can be used to speed up facial identification, this can be done using a secondary scan.

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Adding an additional user or scanning it in Face ID

Starting with iOS 12, it became possible to add an additional user to Face ID. This function is mainly used to add another look to your face (for example, with a beard), but nothing prevents you from scanning and adding the face of your loved one. If you want the face recognition feature to work faster, add a second scan for face recognition. But when adding, consider the following.

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How to set up Face ID for quick work

1. Open the application “Settings”.

2. Select Face ID and Password and enter the password code.

3. Click on “Alternative appearance”.

4. Select Proceed.

Now look directly at the camera to activate the scan. Once the circle is active, lower your iPhone to chest height. Point the camera at an angle of about 45 degrees to the face and try to keep your head straight. So the device will scan the lower part of the face. Now look at the camera, but only with your eyes, without turning your head. Then lower your head down to scan your face from there. Make a circular motion with the head so that the chin touches the middle of the chest. Repeat this again for the second scan and finish setting up Face ID.

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Faster Face Recognition

This trick will add an additional scan to Face ID, which will allow you to quickly recognize your face in the future. The thing is that Face ID scanned your face both front and bottom. This is convenient if the device is located below face level and you cannot look directly at the camera. This setting will allow Face ID to better scan your face when the smartphone is on the table, or you picked it up while walking.

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We translate megabytes into megabytes, or how to understand the speed of the Internet

21/05/2020 by ALOK DAS

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Studying the basics of computer literacy at a school lesson in computer science or with the help of a self-instruction manual necessarily includes a section on units of measurement of volumes of information. Each user is familiar with the simplest of them, but applying knowledge in practice is by no means always possible.

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One of the common problems of the modern inexperienced owner of a gadget with access to the Web is determining the speed of the Internet, because a rare provider provides a channel that meets the characteristics specified in the contract. And taking into account the objective reasons and problems on the subscriber’s side (outdated router, malware, cable damage, etc.), the speed is usually several times lower than the declared one. However, there is another reason – confusion in megabytes and megabytes.

Mbit = Megabits = Mbps

MB = Mbyte = MB = MB = Megabyte

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The technical support operator of any provider can easily name the program that is the reason for most calls from subscribers complaining about the low speed of the Internet – this is uTorrent. The fact is that everyone’s favorite software for downloading pirated content shows download speed in megabyteswhile the generally accepted internet speed is megabits (Mbps), which, as you might guess, contains 8 times less information (1 MB = 8 Mb). That is, even if the provider and the subscriber’s own equipment provide an Internet connection with the speed of receiving incoming packets (download speed) 100 Mbps, then downloading a movie in Full HD quality with a “weight” of 9,000 MB will not take at all 9,000 / 100 = 90 seconds, and 9000 / (100/8) = 12 minutes.

In other words, on a network with a bandwidth of 100 Mbit (Megabits) per second, the file download speed will be 100/8 = 12.5 MB (Megabytes) per second, and not 100 MB (Megabytes) per second.

Why is such confusion needed? There is no exact answer to this question, however, marketing is the most likely reason. Indeed, even an experienced user, reading an advertising brochure from a new provider in his city, can hardly divide the speed indicated there in megabits by eight.

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10 Ways to Improve Safari Speed and Performance on Mac

25/04/2020 by ALOK DAS

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The best internet experience for Mac users is with the Safari browser. This is due to the fact that Apple has done a tremendous job of optimizing the performance and power consumption of Safari specifically for Apple devices. However, like any other browser, at times it slows down, freezes and does not respond to your actions. Below we will consider factors that impede the normal operation of Safari, and offer possible solutions.

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Install macOS updates and restart Mac

Rebooting the computer fixes a great many possible problems, including allowing the browser to work normally again.

As a rule, new versions of macOS include new versions of Safari. Everything is simple – if you have not installed a new OS, then your browser remains old. Of course, Apple is releasing security updates for the old versions and making improvements, but all the new Safari features are only available in its new versions.

Newer versions of the browser have improved compatibility with the latest Internet technologies. Having “conjured” over new versions, Cupertinians achieve greater rendering speed and overall browser performance in general.

Installing an updated macOS will also get rid of many problems with the operating system.

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Close unnecessary tabs

How many tabs are currently open in your browser? How many of them do you really need? Safari keeps tabs open in the background, even if you’re not using them. The easiest way to speed up your browser is to close unnecessary tabs.

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Clear browser cache

Like other browsers, Safari stores a cache of visited pages and related data, which occupy disk space and can cause a slowdown of the computer. From time to time, it’s useful to clean your browser cache, especially if you are experiencing performance issues. To clear the Safari cache:

Open a browser and go to Safari → Preferences in the menu bar at the top of the screen;

Select “Additions” and check the box next to the option “Show the Development menu in the menu bar” at the bottom of the window;

Close “Settings”, on the top menu bar, click on “Development” and select Clear Caches.

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Disable demanding extensions

Safari does not have any restrictions on the number of installed extensions, but they can be more harmful than good, since the extensions can significantly slow down the computer. This is especially true of extensions that directly affect the work with the browser. One of these extensions is TamperMonkey, which allows you to change the appearance and behavior of sites using custom scripts.

To increase the speed of work, disable the extension. Go to Safari → “Settings” → “Extensions” and uncheck the box next to the name of this or that extension. Disable all extensions, and then try to enable each of them separately in order to find the problem.

Keep in mind that disabling extensions does not mean removing them. If you want to completely remove the extension, in the section “Extensions” Press Delete opposite its name.

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Limit the activity of wayward plugins

Plugins like Adobe Flash or Unity Player should be kept on a short leash. To ensure maximum browser performance, these plugins should not start automatically, but only with your permission. You can set the appropriate settings in Safari → “Settings” → “Websites” → “Plugins”.

You can disable unused plugins by unchecking the box next to their names. Safari also allows you to configure default behavior for all frequently visited sites. To do this, select the option in the drop-down menu. “When visiting other sites”.

Unlimited plugins can slow down Safari performance. By limiting their activity, you will give the browser the opportunity to choose new ones, such as HTML5, instead of obsolete technologies like Flash.

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Identify problematic sites

It happens that Safari slows down due to one problem site. The reasons why the site causes problems when working with the browser can be a great many. For example, he can use too many scripts, automatically play advertising videos, run extensions, etc., causing the slowdown of the “poppy” as a whole.

Sometimes these pages consume much more resources compared to the rest, and sometimes they crash. In order to rectify the situation:

1. Open the program “System Monitoring” in section Utilities in folder “Programs”;

2. In the CPU section, click on the “% CPU” column and you will see how much power a particular process consumes;

3. Find sites that consume the most resources, or tabs that crash, and click on “×” to complete the process;

4. Confirm the completion of the process.

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Free up disk space

Lack of free space on a computer can slow down its operation as a whole, and not just the browser. When there is no free disk space, the Mac will most likely freeze, slow down, and stop working. To avoid this, make sure that at least 10 GB of disk space remains free.

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Fix other macOS issues

Improving system performance (in detail) will also help improve browser performance. The less computer resources are spent on performing unnecessary tasks, the more free resources are available for the browser.

First of all, make sure that you have not made any mistakes in working with your “poppy”. For example, remove unnecessary applications from startup (“System Preferences” → “Users and Groups” → “Login Objects”)

Also close demanding applications like Photoshop and Final Cut Pro.

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Fix Internet Connection Issues

Safari’s slow performance can be attributed to low internet speeds. To check the speed of the Internet, use special speed tests.

To increase the speed of the Internet, you can also change the DNS settings. This will be useful if you regularly experience problems with your internet connection. In addition, for sites not optimized for Safari, it is recommended to install alternative browsers, for example, Chrome or Firefox.

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What Internet Speed Is Required to Watch 4K Video (Movies) – Apple Answer

08/04/2020 by ALOK DAS

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Choosing a plan to watch high-resolution video? Of course, the question immediately arises: what should be the connection speed for watching 4K video? The answer is an Apple tech support document.

The text says, among other things:

“Apple recommends minimum speed for 4K streaming [Интернет-соединения] at 25 Mbps. “

And one more thing:

“When you buy or rent a movie or TV show from the iTunes Store, your device may display a warning that it cannot play 1080p (HD) or 4K video content. In this case, your device will automatically start playing the most suitable version of this video for it. “

Of course, this is not the best news – many users not only have access to a truly high-speed and stable Internet, not only in Russia but also in the world. In this regard, the option of downloading 4K content would be very useful. But here, it seems, nothing can be done about it.

By the way, the HD version of the video, as well as the HDR and Dolby Vision options, can still be downloaded to iPhone, iPad, Mac or Windows-PC.

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How to install macOS on an external SSD to speed up an old Mac (iMac, Mac mini, etc.)

20/01/2020 by ALOK DAS

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Many users of obsolete iMac monoblock models (Mac mini, etc.) over time note a significant slowdown in the system, which is observed even when working with regular applications. The simplest and most cost-effective solution to the problem is transferring macOS from a standard hard drive to an external SSD drive.

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What is this for?

The most noticeable increase in processing time for even simple tasks is noted after users switch to new versions of the OS, while even launch macOS Mojave or macOS Catalina can take several minutes, and clearing your computer of digital junk only slightly improves the situation.

With a rough measurement of the speed of the native HDD on the 2013 iMac with macOS Mojave installed, we get:

But what speed did the same computer produce after installing macOS Catalina on an external SSD – 4 times faster:

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No, it’s inexpensive, you don’t need to take the computer apart and carry it to the service center

If we talk about the complete replacement of the built-in HDD with SSD, then many service centers (not certified) provide similar services, but at the same time, the cost of the work and the drive itself significantly reduces the efficiency of the method – it hardly makes sense to spend tens of thousands of rubles on resuscitating an old computer. We also do not recommend opening the device’s case and replacing it on our own for obvious reasons.

So, the most acceptable option from the economic and practical points of view remains:

adding an external SSD, which will work as a system drive, while a regular HDD will be turned into a file storage.

Thus, the task is conditionally divided into three simple stages:

1. Back up the old HDD (optional). You can do without this procedure by installing and setting up a clean system on the external SSD, and since access to the old HDD from a clean macOS installed on the SSD is preserved, data from the HDD can be easily copied to a new external drive.

2. Installing the latest version of macOS on an SSD connected via USB.

3. Data transfer from HDD to SSD (optional).

To do this, you only need the SSD-drive itself and a little free time. When choosing an SSD drive, it should be borne in mind that a USB connection will limit the speed of operation to about 400 MB / s, which means it does not make sense to purchase a disk with read / write speed characteristics, for example, 900 MB / s or more. Recall that the approximate read / write speed of the considered regular iMac HDD-drive of 2013 is about 100 MB / s.

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Where to buy a good external SSD?

Here are some popular options:

How to install macOS on an external SSD

1. Connect an external SDD to your Mac using a USB cable.

2. Reboot the Mac.

3. When you turn on your Mac (at the very beginning of the download), press and hold the key combination ⌘Cmd + R on keyboard.

4. Mac should boot into Recovery mode (loading takes longer than usual). If the computer boots in normal mode, repeat step 2 and step 3 again.

5. In the menu that appears, select Reinstall macOS.

6. Click Proceed.

7. Accept the license agreement by pressing the button To accept.

8. Press the button “Show all drives”.

9. Select a connected SSD drive. It is usually indicated by a yellow icon.

In case the connected SSD is inactive.

while the system indicates an error:

This drive does not use the GUID Partition Table (GPT) scheme.

In most cases, this happens with new SSDs that do not use the GUID partition table (GPT) scheme required to install macOS.

To prepare your external SSD for macOS (install the GUID partition table schema and APFS file system), read our detailed instructions.

10. After preparing the disc, repeat the above steps.

11. Press the button Install. The macOS installation process will begin.

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How to boot into macOS from an external SSD?

There are two ways to download macOS installed on an external SSD.

1. Choice at each boot.

While the Mac is loading (after turning on or rebooting), press and hold ⌥Option (Alt) on keyboard. On the boot screen that appears, select an external SSD (usually indicated by a yellow icon).

2. Automatic loading by default.

In order to automatically boot the system from an external SSD each time, open System settings and go to the section Boot disk.

Click on the lock icon in the lower left corner of the window and enter the administrator password to gain access to the settings, make the external SSD active for loading and click the button Reload.

After completing these steps, the system will always boot from an external SSD.

Conclusion

As a result, we have a 4-fold increase in the speed of the drive, which gives a significant boost in performance, accelerating the launch of the system and applications. At the same time, the advantages and disadvantages of this method can be highlighted:

Benefits

Speed mode. As mentioned above, using an SSD instead of an HDD (when connected to USB) will increase the read / write speed up to 4 times.

Profitability. The procedure for adding an external SSD will cost much less than a full replacement of the HDD inside the case, which does not go to landfill, but turns into a file storage;

Reversibility. At any time, you can return to the system on the HDD;

Simplicity. To connect an external SSD and install macOS on it, you do not need to be an advanced user and open a computer – the detailed instructions above will allow you to do all the operations even for an absolute beginner.

disadvantages

Accommodation The only drawback may be the need to safely place an external SSD on a table or computer case, for which you can use special protective covers.

See also:

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Speed test, or how to check Internet speed on iPhone, iPad and any computer: 5 best services

28/12/2019 by ALOK DAS

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It’s not a secret for anyone that Internet providers, as a rule, promise their customers the Internet at tremendous speeds, but have you ever wondered what speed you are actually paying for? You can check the real speed of downloading and downloading data via the Internet using free online services, a list of which we have presented below.

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In addition to the speed of your Internet, they will also help you identify possible network problems, such as packet loss, delays, and physical hardware problems.

If you don’t want to bother, just type in your favorite search engine (for example, Google) “check the speed of the Internet” and click on the very first search result. Not that these tools provide a lot of information, but they work quickly and easily.

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Perhaps the most popular service for measuring Internet connection speed among Russian users.

Ookla’s bandwidth diagnostic software is used by a number of services presented in this article. However, Ookla also has its own Speedtest.net service, which provides complete information about your Internet connection.

The technologies used by Speedtest.net are very sophisticated, but they work very quickly. The service selects the nearest server from 1000 available, conducts full testing and provides data on the download and download speed, delay time and packet loss.

After testing, you can fill out a questionnaire, letting you know what speed your provider promises, how much you pay for it and what you actually get. This data helps Ookla put together an impressive database of internet speeds for various users.

In addition, there is an application for iPhone and iPad (link).

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You can check the speed of the Internet using the Yandex.Internetometer service. To do this, just press the button Measure and wait a while to collect data. The service will provide information on the speed of the incoming, outgoing connections, as well as data about the user, such as: IP address, name and version of the browser, device screen resolution settings and region.

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Speedof.me is a service for checking the speed of the Internet, created on the basis of HTML5. The service reproduces the actual conditions for downloading and downloading from the browser by requesting large files and determining the speed of their download. You can see the speed presented in the form of a curve in real time and compare it with previously obtained results.

During the test, the service does not select a location, but determines the fastest and most reliable server out of 90 available. In order to reproduce the real working conditions with the browser, all files are downloaded and downloaded not simultaneously, but sequentially.

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Bandwidth Place is another service created based on HTML5. It is very lightweight, so it can be used on various devices. The site itself has been operating since 2002, but support for the new version of HTML appeared in 2013, making the service compatible with mobile devices.

Bandwidth Place selects a server for testing by the smallest available ping, or using location and servers to see how distance affects speed and latency. In addition to information about the speed of the Internet, the site also provides news on broadband services and suggestions for more extensive connectivity options.

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Google has a service for checking the speed of the Internet, developed by the organization Measurement Lab (M-Lab). Running it is very simple, just click on the appropriate button. A small window will open where you can see the speed of downloading and uploading.

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Fast.com is a simple site owned by Netflix, and the word “simple” means that it’s never been easier. The service automatically runs a speed test and shows the real speed of your Internet.

The company launched the service primarily for users who want to check whether their Internet can provide viewing of its proposed content, especially in 4K format, requiring high speed. Nevertheless, anyone can use it at any time. If you are not interested in data on delay and packet loss, feel free to choose Fast.com.

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Speed Tests from Internet Providers

Those who want to get the most accurate and, so to speak, personalized speed test, can turn to the appropriate services from the Internet providers whose services they use. Many providers offer their customers services to check the speed of the Internet, and often they are available even to those who use the services of other providers.

In fact, there are a lot of similar services from telecom operators on the Internet. Just go to your ISP’s website and see what it offers. Alternatively, type in your Google search the name of your Internet service provider and the phrase “speed check”.

See also:

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How to enable Keystrike on iPad

How to use the keystroke keyboard

What is the speed of light and how is it measured

What is the fundamentality of the speed of light

Why can’t anything overcome the speed of light?

near-light speed

FTL

The speed of light is visual

What is USB (Universal Serial Bus)?

The birth of a hero

USB 2.0: and screw up …

USB 3.0 / 3.1: only stars above

USB speed depending on interface generation

USB-C: symmetry glory

How Wi-Fi Speed ​​Tests Work

Ping speed

Download speed

Download speed

Common test mistakes

Do not test just once

Do not test during peak hours

Don’t test in the wrong place

During testing, do not download files to other devices

Remember to restart your computer

Use the right testing tools

Do not test internet speed with VPN enabled

Why Test Wi-Fi Speed?

Video review:

Transcend ESD350C

Design and dimensions Transcend ESD350C

Functionality Transcend ESD350C

Transcend ESD350C Baud Rate

Transcend ESD350C Package Contents

Technical Specifications (Specifications) Transcend ESD350C

Software

How to enable Strike Keys on iPad

How to use a striking keyboard

What is the speed of light and how was it measured

Why is the speed of light fundamental?

Why nothing can overcome the speed of light?

Near-light speed

Superluminal speed

The speed of light is clear

How to speed up or slow down YouTube video playback on iPhone and iPad

How to check the speed of SSD, HDD, or USB stick on Mac (macOS)

Adding an additional user or scanning it in Face ID

How to set up Face ID for quick work

Faster Face Recognition

Install macOS updates and restart Mac

Close unnecessary tabs

Clear browser cache

Disable demanding extensions

Limit the activity of wayward plugins

Identify problematic sites

Free up disk space

Fix other macOS issues

Fix Internet Connection Issues

What is this for?

No, it’s inexpensive, you don’t need to take the computer apart and carry it to the service center

Where to buy a good external SSD?

How to install macOS on an external SSD

How to boot into macOS from an external SSD?

Conclusion

Benefits

disadvantages

Speed ​​Tests from Internet Providers

How Wi-Fi Speed Tests Work

Speed Tests from Internet Providers