Which part of the computer is known as peripheral device?

The very purpose of a peripheral device is to do work. Again peripheral devices are of two kinds. One is input device and the other is output device

Peripheral device is the device which is connected to computer to do some work. There are two types of peripheral devices: Input and Output devices. Peripheral devices are such as mouse, keyboard etc.

Peripherals are attached devices to the computer.

Every thing that is connected to computers in order to perform some activities is know as Peripheral device. It is mainly of two Type. Input and Out put. Through Input device we feed instruction to computer and computer use output device to give data to user of computers.

Peripheral devices are the devices used to put information into or get get information out of the computer.