USB stand for universal serial bus. It is develop in 1990 define the cable.It is also called flash memory.
- USB are connect Keyboards,mouse, printers and other portable media players are some examples of peripherals.device of usb.
- This is a nonvolatile and re writable memory that function like a RAM and a hard disk combine integrated with a USB interface.
- If power is lost,all data remaine in memory.
- Because of its high speed,durability ,and low voltage requirement,it is ideal for digital cameras,cell phone,printer,handheld computer ,pagers and audio record.
- USB flash drive are typically removable and re writable and physically.
- Now day external hard drive are used USB.
Five type of USB version:
1.USB 1.0 is introduce January 1996.
2.USB 1.1 is introduce august 1998.
3.USB 2.0 is introduce april 2000.
4.USB 3.0 is introduce november 2008.
5.USB 3.1 is introduce january 2013.
