characteristics of computer

Computers are not merely a calculate but are programmable calculation which help to reduce on human memory and burden of mechanical processing . all computers have many comman characterics .

word size or length refers to the number of the CPU can manipulate at one time . it is based on the size of the registers in the CPU and the number of data lines in the data bus . in other words , it is the native unit of storage on a particular machine .

Computers can do calculation at a very fast rate . it can even perfom very complex calculation that human beings may not be able to do . the speed of computer measured in terms of fraction of second. A computers system can store a great amount of information in it . any data or information stored in its memory can be retrived any time and at lighting speed.

A compouter is a versatile machine . compputer has the ability to communicate with others systems and adopt several modes like audio , visual , graphics ,user - friendly .

history of computers

the history of computers starts out about 2000 years ago . at the birth of abacus , a wooden rack holding two horizantal wires beads strung on them .when these beads are moved around according to programing rules memorized by the user , all regular arithmetic problems can be done.

The evalution of computer has passed through a number of stages before it reached it's present state . there is an old saying nessetly is the mother of invention . it is ture in the case of the development of modern computers . the early mathmaticians , engineers and scientists had no idea and no imagination of a powerful computer . it is intresting to know how over the years the computers , as they appear today , have developed starting out as a simple calculating device.+

Introduction of computer

computer have almost changed the world. computers have become very essential tools in most walks of life. In almost all flelds in many countries today -rely on computers. computers are used in schools and homes. science . technology and space research all depend on them. with the advent of computer a new wave of accuracy and efficiency has breezed softly in all spheres of life. industrial advancement,education ,commrece and business , medicine ,tourision , etc., are the core areas where the comp[uters are getting utilized . today man can communicate from one part of the world to other part easily , which is example of the advancement of computer science. within a minute , man can communicate through telephone, telex,fax,email etc.compouter is an electronic machine that can accept data process it according to aset of predifined instructions and then gives the results.