INFORMATION TECHNOLOGY DEVICES "COMPUTER"

INTRODUCTION                                                                                                                                                             The term compute means to calculate something.during calculation some mathmetical operation are performed.Before the origin of the computers,there were mecanical and electromecanical calculating divices.Thus,for solving methematical problems and scientific problems,the computers were developed.In early days,since there were no computers people used mecanical devices.We will discuss the origin of mecanical  calculating divices in the forthcoming sections.Gradually ,as electric powered computing devices emerged,the world of computing clanged and much faster and efficient calculating devices were developed.Many people have contributed to the development of the computer.Noteable personalities changed the method of computing and mathematics geniuses helped in developing complex computing techniques.                                                                                                                                                                                                                                                                                                                   In general terms,compute means to calculate somthing.To calculate means to do some mathematical operations.About 30-40 years ago ,the calculator was introduced as a calculating divice.Calculator computes number or does methematical operation.This is also a digital operating devics.But computers appeared in huge sizes and extermely high processing capacities.Now,computers have become very powerful devices to support the development  in the field of data processing and research.Their size reduced and processing capacities and speed increased termendously.Therefore,the computer has become almost indispensable in morden technologies.                                                                                                                                                                                                                                                                                                                                                                                                     The computer has avery big role to play in bringing the world together.The computer is used in almost every field in developed countries.A computer is afast and accurate electronic symbol or cata manupulating system that is designed to automatically  accept and store input data,process them ,and produce output results under the direction of stored program ofinstructions.