History Of Computer

Computer is the latest and most powerful invention of modern science and technology. It is the part of modern science and technology. It is an ultra-modern electric device of modern technology. But it has no ability to do anything for itself. It works on the basis of commands given by an operator. It can solve many complicated problems within a short time.

Mr. Charles bavez is called father of modern computer. He invented computer in 1833.that time computer had 5 parts. These were store,Mail,Control,Input,Output.but the credit for the invention of modern computer goes to American scientist,Mr Howard Akin.Later on, Howard university  and I.B.M company jointly invented computer in 1944.After that computer being modified very rapidly, And finally with the invention of microprocessor in 1971,the size of every single computer become smaller.

The watch Computer, it was first used in 1950s ,reads programs that are punched into the strip of tape.

Computer are of three kinds. Those are Analouge,Digital,and Hybrid computers.bt now computer means a digital Computer. Each of the special systems, is called ‘generation’. at present, fifth generation core i5/i7 processor computer is being used.

Present computer

A computer works with three functions. it receives data, processes it and at last emits. It is consists of five major components-the input unit, the output unit, the memory unit, and the control unit and arithmetic unit.

At first the details of work is put into of the comuter.it is called programme.computer does not work with our language.so,the programme is  put in its own machine language.This programme is typed and produced in tale-type unit of the information input.The output prints the results with the help of the printing machine, it’s signal goes to memory and the control unit reads them and send them to output unit.Being informed, the control  units makes signal to send them to the arithmetic unit. After finishing it’s task, it sends them to the results out put. thus result is emitted by computer.

Classification of computer:

1.super comuter:CRAR-1,CYBER-250 etc.

2.Mainfreame comuter:IBM4341,NCR N8370 etc.­­

3.Mini computer:IBM S/34,IBM S/36 etc.

4.Micro computer:IBM PERSONAL COMPUTER(PC).

Generation of computer:

First generation t(1945-1960) technology used:

 valve (vacuum tube)e.g.IBM650,UNNAC1,IBM701

Second generation t (1960-1965) technology used: 

transistor e.g.IBM1401,IBM1602,IBM1602.

Third generation t (1965-1970) technology used:

IC(Integrated cirkut|) e.g. IBM 1401,IBM1602

Forth generationa t (1971-now) technology used:

LDI(Large Scale Integration) e.g. IBM PC.

Fifth generation t (now to future) technology used:

 VLSI (Very Large Scale Integration).