Information carriers



Flash drives are less durable than disks (CD \ DVD \ …).

Flash drive, like any electronics, has a number of advantages and disadvantages. The main advantages are: relatively low weight, complete absence of noise and some friction parts or simply movements and as a result consumption of much less energy due to the lack of these moving parts. In this case, flash drives can work without cooling in a fairly wide range of temperatures. Flash drives, unlike CDs, are more resistant to dust and scratches, if a scratch on the surface of the disc can seriously damage the information written on it or make the disc completely unusable, then a scratch on the USB flash drive is a scratch on the case, a piece of tattered plastic, no more. The flash drive itself is much smaller than the case and is securely protected by it. As any computer, both modern and “old” has in its arsenal, although usb ports, and a flash drive is no longer necessary. As a result, we get a completely universal product that is resistant to mechanical damage, shaking and vibration, which is compatible with all computers and can work at any temperature comfortable for a person.

The USB flash drive can be burned if it is simply removed from the usb port without disconnecting it via Windows. There was a sin behind the USB flash drive. Although early to say that it was. Some flash drives still do not support “hot shutdown”. This does not mean that any flash drive that does not support the hot-shutdown function will necessarily burn out at the first use. It is more a matter of chance, how lucky. Support for the hot-disconnect feature is not a panacea for modern flash drives, it’s just an attempt to eliminate the voltage spikes that cause the flash drive to burn out. At this stage of development, it can not be said that a modern flash drive will never burn when connected or disconnected. But the probability of breakdown is significantly reduced. Even if you disable the USB flash drive with Windows system tools, you can not be sure that everything will pass “cleanly”. All electrical appliances have one unpleasant feature, nothing is 100% accurate. Neither tension, nor confidence in their work, there is always some kind of flaw, a small deviation, an insignificant, and sometimes quite serious, failure.

A USB flash drive is a perpetual storage medium.

There is nothing eternal. If we talk about problems from the user, the flash drive is still not so durable. First, it has a limited number of recording cycles. According to third-party research, a simple flash drive in “stand-alone mode” can store data only up to 5 years. More promising samples raise the bar to 10 years, but still it is not enough to receive the title of an eternal custodian of information. Of course, an ordinary user is unlikely to put a flash drive with valuable data somewhere and forget about it for 10 years, that after living a significant part of the time allotted to him, again remember the secrets recorded in the flash drive. But from a global point of view, everything is clear with her … So we get a good and convenient data carrier, which alas can leave us at any moment. You can not say for sure how many times you can rewrite the data on a USB flash drive, it’s enough just to know that sometime its time will come and the device itself has its “expiration date.” Although the world experience, the situation will be similar to a large piece of rubber band – you rather lose or throw out your flash drive before you reach its physical limits.

The speed of burning to CDs is much higher than the write speed on the USB flash drive.

Yes, most CDs, DVDs are recorded at a higher speed than flash drives. It’s all due to the relatively small bandwidth of the USB port plus the speed of burning the flash drive itself. For such a compactness you have to pay for a slower recording speed.If the DVD drive has a fixed list of speeds, which more or less accurately answers our question about time, then the same flash drive can spend on recording the same amount of information completely different times on different computers. And there is not one reason for it. The version of the USB port characterizes its throughput. Next, each manufacturer of USB flash drives has its own “authoring” technologies, which affect the recording speed. Compact discs, as already mentioned, have a fixed recording speed that is several times faster than the recording speed on the USB flash drive. After all, CDs are recorded using the method of burning tracks and limits the recording speed only to the speed and accuracy of the laser movement.

The laser from the CD \ DVD drive can burn some object or cause serious damage to it, because it can burn the disc!

The laser really burns a CD, but it’s not through. The depth of the burning is minimal, otherwise we could feel it, for example, by swiping a finger across the disc. With such a laser, you will not be able to burn through a piece of wood or even a piece of paper. Its power is specially trimmed, for the simple reason that those small holes are enough to record and read data. But it is impossible to shine with such a laser in the eye. In no case. The absence of visible damage does not indicate their absence. Having sent such a laser even a couple of seconds, as a joke, you can damage the lens or other component of the eye. In any case, the consequences can range from deterioration of vision to its complete loss. So be careful, because the manufacturer glues the sticker “do not look at the laser” not from boredom. If you want to joke, think of something safer and perhaps more friendly, it’s unlikely that a person will laugh with you or thank you for such consequences.

Some programs can be installed directly on the USB flash drive, and then run them on any computer without reinstalling.

Yes, it is. At the moment there are a lot of programs that are distributed to install specifically on the USB flash drive. Programs are very diverse, clients for instant messaging, audio and video editors and, in the end, even operating systems. About the latter in more detail. If the program installed on the USB flash drive is still in the norm, then the operating system makes you think. But, everything is not as scary as it seems. Linux releases distributions (installation files) specifically for installation on a USB flash drive. Such a system, oddly enough, will work stably, and since Linux is not so attached to the hardware as Windows, there will be no problems when changing the computer. All installed programs, updates and other add-ons will be preserved, and will work equally, as if the computer never changed. The advantage of this option is that you do not depend on your home or work computer, if you often change the place of access and do not want to synchronize your data for hours, the history of messages, etc., which, by the way, in 90% is possible only manually, then for you it will be an ideal option. Convenient, simple, fast.

Blu-ray (BD) – the future of disk storage media.

It already supersedes CDs and DVDs, and soon the market will conquer at all. The Blu-ray drive will be the same norm as the DVD drive. The Blu-ray disc differs significantly from CDs and DVDs, it is manufactured using a different technology, it has a large capacity, and it is also made of another material, which means it is also written to it using other methods. You can not simply insert a Blu-ray disc into a regular DVD drive and expect it to work correctly, especially when recording. You just mess it up. Undoubtedly, the hour of Blu-ray discs will come, they have a number of advantages and advantages over DVD, but it is difficult to talk about terms. To start a full-fledged use of technology, there must be a push. Here you will write your friends movie on a Blu-ray disc, knowing that they have a DVD drive and they just can not read your movie? It’s unlikely they will appreciate your manufacturability.So, the push should be in another sphere. In the data sphere. Blu-ray discs reach a capacity of several tens of gigabytes, up to several hundred. And will you buy a disc that is several times more expensive than a DVD, for the sake of recording 1 to 2 films of 2 gigabytes each? Meaning? After all, a modern DVD with 4.7 GB is enough. That’s the reason, when high-quality movies will be available on any movie site, then there will be a real need for only large discs. Nevertheless, the transition to a new technology has already started and we can only wait.

Blu-ray discs have a capacity of up to 320 gigabytes, while the size fully corresponds to the standard DVD disc.

The diameter of the Blu-ray disc is 120 millimeters, the same diameter as the DVD. Developers have increased the capacity in several ways. First, they condensed the record by reducing the distance between the tracks. As a consequence, a more accurate and thin laser is used. Secondly, the layers. Layers actually create another surface, equal in capacity to the previous one. If we have a disk of two layers with a capacity of 50 gigabytes, this means that one layer can hold 25 gigabytes, the second one has 25 more. Developers keep moving forward, layering four, eight and even ten layers. The notorious company TDK personally undertook the development of a ten-layer Blu-ray disk with a capacity of 320 gigabytes. Just think, recently a 320 gigabyte hard drive was already a miracle and an object of admiration, now it’s enough to buy a blank disk and at your disposal will be the same amount of free space. The pace of development of the computer sphere is sometimes terrifying.

The rewritable CD-RW / DVD-RW discs are extremely unreliable, it’s better to refrain from using them.

Rewritable discs really have not gained wide use and are especially popular among the masses. They are not as bad as it might seem. Quite reliable and convenient. But with the advent of a flash drive, their use simply lost its meaning. In addition, a rewritable disc has a limited number of re-recording cycles, which is much less than a flash drive. The disk takes up more space. It is easier to scratch, for this it is enough to just lose a box. Re-writable discs are simply bypassed in development, no more. In principle, no one forbids you to use rewritable discs, sometimes inserting a disc into the machine is much more reliable and convenient than a flash drive. Listened, and then re-recorded. And the mountains of the listened discs do not roll around, and all the actual music is always with you. There are no real reasons for not using such discs. Just with a USB flash drive you will be much more convenient and comfortable. Also saving time on re-recording. By the way, the old information from a rewritable disc is erased at times longer than with a flash drive.

Remote data warehouses (via the Internet) are extremely unreliable. In fact, one of the most reliable places to store important information, which is a pity to lose.

There are a number of foreign services that provide not just the ability to save individual files, but entire archives, directories, folders. Typically, these services provide their software, which creates a special folder on your computer. This folder will be synchronized with any actions, when adding a new file or when deleting it. This means that you do not need to go to the site, register, upload a file and remember the link. It is enough to copy the file to this folder, and it will automatically be downloaded to the remote store. Than it is convenient? You never know when a virus will manifest itself. After all, especially complex viruses begin to act, waiting for a certain period of time, and no antivirus can provide 100% protection. When the virus starts to operate, it will be too late to save important files. You just lose them, from the part, because it was too lazy to go to the site and upload them. In our case, it will be enough just to copy the file to a special folder and no viruses will catch you off guard.

If the virus penetrates into a special folder for files, it will also be downloaded to remote storage and will infect all my files.

No way. File storage has a completely different operating system, which is not afraid of viruses for Windows, because they simply will not work. In addition, file storage has a serious anti-virus protection, and especially large “individuals” have many years of experience with such problems. So you do not have to worry about data protection from viruses. The only thing that threatens them is the bankruptcy of the file storage and its global cessation of activity. But with big players in this segment this is unlikely to happen. Therefore, when choosing a file storage, be guided by how long the service has stayed and how it proved itself. Reviews can be viewed by entering in any search engine “Service reviews”. In addition, you can automatically synchronize information from the storage between your computers, which means you do not need to throw something off or bother yourself with transferring data through a USB flash drive.

However, my data is not confidential, anyone or the owner of the service can easily view them.

In principle, a public offer or user agreement usually informs that neither the administration nor the third parties have the right, and will not watch your files. Of course, your files are physically located on the file storage server and access to them is available, but if the store has a million clients, the administration or the owner is out of irresistible boredom, well, the person has bothered to drive a Porsche and a bugatti, By the way, a lot of garbage? Fears are always, but think for yourself, a million, and maybe millions of users, who have tons of garbage in the form of text files with quotes from Wikipedia, coursework, abstracts, just incoherent information. First, it will tire anyone, a person who is purely physically unable to withstand this. Secondly, who will do this? Workers of this file store? What kind of salary they should have to handle such volumes of information. Absurd. Conclusion – physically your information is not protected, but against the background of others it is like a drop in the ocean, no one will ever reach it.

Remote file vaults will try in any way to get me to buy from them paid services.

They will limit the speed, give a minimum of free space or something else come up. The life of similar services in competition. Unlike domestic file storages, where to reduce the speed to a minimum, limiting the size of the downloaded file to 50 or 100 megabytes is the norm, foreign services have moved much further. Having tested the first one, we get 2 gigabytes free for our files, the unlimited size and format of the downloaded file, the synchronization with the computer through their author’s application, the speed of the download, the unlimited speed of the download and access to the files (limited only by your provider). Paid service is the only one – increasing the disk space for files. But you will agree, 2 gigabytes in the free version does not at all resemble compulsion and does not even hint that it will not be possible to use this service without costs. The only paid service only limits the consumption of disk space, if you start distributing 10 gigabytes in succession, then there will not be enough screws, and every gigabyte is the money invested by the authors of the service. After all, on one enthusiasm you will not go far, you have to pay for everything, including them.

In the development there are combined Blu-ray / DVD discs.

JVC really had an idea to make a 2-in-1 CD. On one side, the intended disk will have a DVD cover, and on the other a Blu-ray. Obviously, such a move will be an attempt to smoothly prepare people for Blu-ray technology, to take it to the masses.A person will buy a DVD that is compatible with its current drive, but will have to at least ask what kind of Blu-ray it is. Although the very appearance of such discs in the store will inform the masses about the intentions of the technology to win the first position among the disk media. In other words, we get a profitable PR move, spreading to the masses and possibly promoting technology as such. Agree that it will release such disks much easier than to launch advertising, arrange some conferences and presentations. It’s much easier to give a person to feel the Blu-ray disc, without depriving him of the opportunity to use a DVD. It’s a pity not to use the second part, is not it? A person will record something on Blu-ray, friends or someone else. At the same time he will see that much more of his favorite music or films have been placed on this surface. The result of such a scheme is obvious.



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