USES  OF INTERNET

Internet is the name of a unique system that contributes  largely to the establishment of effective international communication. It is playing a significant roles in the concept globalization. It is being used in almost sphere of life considering it’s positive aspects. But it has some negative side also. It’s totally depends on people who use it.

Internet is the abbreviation of “Internet Network”. It is actually an international computer network connecting other networks and computer around the world. If anyone want to access to internet, they need four things, Those are computer,Modem,Telephone and internet service provider.

Internet has change our life. It makes our life easyer.It change our concept that we never thinking. It is possible to send or receive information to or from any part of the world. By the internet world is now in my hand.so,we can do many think for our study usually as a student we need book,bt by through the internet, now we can access  into any online library for our books. We can search necessary information by using internet within short time. Internet also help local and foreign traveler to get their destination. Now we can see our searching place with live footage which is provide from google.We can also see our live location by through internet. Not anly that we are making agreement to our buyer who lives from another part of the world.Air ticket,bus ticket,train ticket,ship  ticket,hotel booking and many others ticketing we can buy from our by from our house thought the internet. We can get news of home and abroad from it, not only that but also we can chat and talk,vedio chat with friends and fans by using internet. on the other hand ,internet provide us with the opportunities to enjoy music,movie,sports,news etc.

After coming internet, our world has been change rapidly, internet makes people life comfortable, and also it’s save our valuable time, we can do all kinds of work  from my home by using internet……

Its  playing very important role to build up our technology world.

                                    

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).