What does "U disk expansion" mean?What's the impact on the existing file?Please tell me more about it
I saw it in an article about flash memory, which is to add compression programs to the U disk, so that the files are compressed so as to achieve the goal of expansion. Of course, this will affect the speed of flash read and write
To add a new situation is physical expansion, that is, some U disk hanging card slot, you can plug in memory cards, but also to achieve the purpose of expansion, but such a U disk on the computer will generally be recognized as two disk.
The U disk wasn't that big, but it turned out to be so big. I've seen someone take a 16M U disk, change the file system inside, and display 8G on the PC. There must be an impact on the existing file, more than the scope of the file will be lost, and the U disk to do so must also be done with a flash flash, even if there is no more than the scope of the document, it is difficult to guarantee safety.
U disk expansion. Mainly for the current market U disk counterfeiters, through technical means, so that a small capacity U disk on the PC show more than its own storage capacity of the U disk, and sell at a high price. For example, a U disk can be 256 M by means of technology expansion to 8 G, and then according to the sales price of 8G, if the user to store the U disk, more than 256 M all the things are lost, and the U disk storage speed is very low, and often in the PC symbol U disk the machine is displayed on the EXE format, and can not use similar poisoning. Many parallel U disk often do similar expansion, you can detect the expansion of such U disk through software.Identification method:The most immediate and effective way is to buy direct identification at the site. Manually store more than half of the file data of the U disk on the seller's computer, preferably in the same folder. If it is a shrink disk, the data stored is damaged and cannot be opened.
