Keyboard

A set of alphanumeric and command keys used to input information to a computer.

Inputs devices

Is a piece of computer hardware equipment.

Impact printers

Is a printer that prints hard copy's.

Hard disk drive

Is a non volatile storage device that stores digitally encoded data.

DVD

It plays disc in the computer.

Controller

machine tools that are operated to program in the computers.

Central Processing Unit (CPU)

Its a system that carries out the instructions of a program.