Information science

How computer communicates ? Computers are machines which enable us to communicate via a medium , this medium can be a wire or wireless.communication accurs when some kind of data is exchanged between two computers.another amazing thing here is that data is transfared in the form of bits ie in the form of 0s and 1s  eg 1010101010111000001010101  but we see the alphaetical form of messages and data in front of us , the reason is that there are many processes through which data is passed before coming to us . a network characteristics depends upon the  Speed of network  ( how fast data is transfered from one device to other)  Consistency  ( data should not be interupted or corrupted by any means) Security  ( data should be secured from unauthorized access and data theft should be prevented ) connection between computers can be of many types , like point-to-point                 ...

What is computer ? Today all of us are fimilliar with the computing machine some of us call it as a computer or a PC. A computer is a modern device which is nothing but a complex calculator that enables us to perfom much difficult calculations within seconds . Computer didn't just bacome what is it today but it had to gone through many evolution stages just like humans or others inventions. First practical computiiing machine idea was given by a British mathematician Alan Turing when he was approached by British govt to decipher the german encoded messages during the second world war in 1945. Alan was asked to break Enigma (german code machine) by providing mathematical solutions but when he saw the dynamic functionality of machine then he thought that instead of beating a machine by human , there should be machine to beat the machine. Then he started working to build the machine that can compute the large calculations faster than humans. He named his machine...