what is USB, how it is work ?
USB is a plug-and-play interface that allows a computer to communicate with peripheral and other devices. USB-connected devices cover a broad range; anything from keyboards and mice, to music players and flash drives
USB (Universal Serial Bus) is the most standard connection used to connect a computer/laptop to devices such as digital cameras, printers,mobiles, tablets,etc.
USB is the short name of Universal Serial Bus. Nowadays this is the most popular connection used to connect a computer to devices like small memory cards, external hard drives, cameras, printers and scanners
USB is a cross-platform technology and supported by most of the major operating systems.
There are three USB specifications is 1.0, 2.0 and 3.0. Each specification publication allows for faster data transfer rates than the previous version.