4th Class Computers Science Computer and Its Peripherals Introduction

    Introduction  

A computer peripheral is any external device which provides input and output for the computer. For example, a keyboard and a mouse are input peripherals while a monitor and a printer are output peripherals. Computer peripherals or peripheral devices are sometimes called "I/O devices" because they provide input and output to the computer. Other peripherals are outside the computer case, such as the printer and image scanner, attached by a wired or wireless connection.    

      Some commonly used Input/ Output devices are listed in the following table:

INPUT DEVICES                               OUTPUT DEVICES

Keyboard                                           Monitor

Mouse                                                LCD

Joystick                                              Printer

Scanner                                              Plotter

Light Pen

Touch Screen