What is a U disk? What is a U disk?

Introduction U disk is the abbreviation of USB disk, and USB drive is just a U disk homophonic name. U disk is a kind of flash memory, so also called flash disk. The biggest feature is: small and easy to carry, large storage capacity, cheap. is one of the removable storage devices. The general U disk capacity of 128M, 256M, 512M, 1G, 2G, 4G, 8G, and so on, the most common in the price of 1G, for example, 20 yuan can be bought. 2G Kingston only 35 yuan. U disk capacity has been greatly improved, such as: 4G, 8g,16g u disk.  It is easy to carry, is a mobile storage device, so of course not in the chassis, we can hang it in front of the chest, hanging on the keychain, and even into the wallet. Storage principle the computer turns the binary digital signal into the compound binary digital signal (joins the assignment, the check, the stack and so on) reads and writes to the USB chip adapter interface, through the chip processing signal allocates to the EPROM2 memory chip corresponding address storage binary data, realizes the data storage. EPROM2 data memory, its control principle is voltage control gate transistor voltage high-low value, gate transistor's knot capacitor can hold the voltage value for a long time, which is why USB power can save data after the loss of the reason.  Can only be so popular simple explanation. The USB disk is USB device. If the operating system is a Windows 2000/xp/2003/vista or Apple system, plug the U disk directly into the front panel of the chassis or behind the USB connector, the system will automatically identify. If the system is Windows 98, you need to install a U disk driver to use. Drive can be included in the CD or on the manufacturer's website.


　　The first time you use a U disk on a computer (when you plug a U disk into a USB port) the system reports "discover new hardware." Later, you will be prompted: "The new hardware is already installed and ready to use." (Sometimes you may need to reboot) when you open My computer, you can see an extra icon called removable disk. After this step, after the use of U disk, you can plug in, directly open "My Computer." Notice at this point, in the bottom right corner of the screen, there will be a small icon, is the meaning of the USB device. (U disk is one of the USB devices), next, you can like the normal operation of files, on a U disk save, delete files. However, note that after the U disk is used, close all windows, especially about U disk window, the right to pull the U disk before the right key point to the bottom right of the USB device icon, and then the left key point "safe removal of hardware", press the "Stop" button, in the pop-up window, and then click "OK". When the bottom right corner prompts: "You can now safely remove the drive" this hint, you can remove the U disk from the chassis. Unplug there is another convenient way is to direct left-click on the additional icon, and then click to stop the USB interface, and so on, you can now safely remove the drive "This prompt, left-click OK can be unplugged."