They are usually compatible with any computer platforms, but for Windows users, only the 98, NT, 2000, XP and Vista versions can be used. There are security concerns related to the use of USB thumb drives. Virus infection cannot be prevented if you connect the flash card to a computer infected with malware Then, lots of information can be uploaded on them without a system administrator noticing it. Reversal processes can be encountered too.
An IT technician can upload an anti-virus software on a certain infected computer from USB thumb drives without creating any risk for the system servers for instance. Normally, the operations require high speed, unless the applications that you run on them are very complex or large. The speed is not an issue for USB thumb drives when you are trying to read or write document files or photos. Video files could take a bit longer but it all depends on their length and format. As for the re-writing options, there are millions of cycles involved so that there is no concern for USB thumb drives from this point of view.
You can purchase usb 2.0 thumb drives from any store that sells computer supplies. The prices usually vary depending on the storage features, and the most expensive can be as much as $200. The most common sizes that come available for USB thumb drives are 128 MB, 256 MB, 512 MB, 1 GB, 2 GB and 4 GB. In case you want such a disk packaged in a nice customized design, you just need to shop with companies that provided personalized memory flashes. The functional principles of all the USB thumb drives are however the same, despite their different names.
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