External device other than device is connected to the host computer, it is generally divided into input devices, output devices, and memory, computer systems is an important component of external equipment, play a role in transmission, transfer and storage of information
Hereinafter referred to as "peripheral". Input and output device in the computer system (including external storage) collectively. Data and information play a role in transmission, transfer and storage. Is an important part of computer systems. Peripherals refers to anything other than the host device. Peripherals are subsidiary or ancillary equipment connected with the computer. Peripherals can expand the computer system.
