INTRODUCTION

Everybody uses computers, but most of them do not know what a computer is in reality. The first things that come to mind is a CPU, a display and a keyboard. Yes the computer can consist of these three components, however; there are four main components which classify an electronic device to a computer. Your cell phone, satellite receiver, mp3 player and your laptop are all computers and many devices, which do not look like a PC, can be a computer. So, can you tell what a computer really is? Sure, as a computer guru you will explain to the class what a computer exactly is with your block diagram.