Introduction

Personal Computer System

In the olden days, people make use of primitive materials in performing some activities, which of course lead them to less effective result. This was occasioned by the use of less technologically advanced equipment that can perfectly perform those tasks. With time, man began to improve on that equipment; the consequential result is more effective outcome. In the last two centuries, machines were invented that could serve variety of task. Among those machines computer was the most important as it usage in the modern days has affected the lives of people, to an extend that many have began to imagine the world without computer.

Nothing epitomizes modern life better than the computer for better or worse, computer has infiltrated every aspect of our society. Today, computers do more than simply compute: the importance of computer has cut across all live aspects. One may wonder where did this master machine come from, how is it used to achieve aims and where is it leading to? This article is purposely made to assist people acquire knowledge on how and when to use computer. This is in line to solve the rising demand for computer services.

This article shall be used as a medium to move from computer illiteracy to literacy. It is also designed to improve on the knowledge of those who are already computer literate.

DEFINITION AND HISTORY OF COMPUTER

Definition

Computer is a very commonly word used often. We are familiar with what a computer is in specific contemporary sense. Personal computers are found in most aspect of our daily life, and for some it is hard to even imagine a world without computer. A computer is a its most basic, a machine which can take instructions, and perform computations based on those instructions. It can also be defined as an electronic device that accept data as raw material, process them and bring out result as output. Computer can also be defined as an electronic device that accept data as an input, store and process data, and present information known as output. It can also be seen as a machine that can be programmed to manipulate symbols. Its principal characteristics are;

• It responds to specific set of instructions in a well defined manner
• It can quickly store and retrieve large amount of data
• It can execute a prerecorded list of instructions (a programme)