Computer

A computer is and electronic dvice as well as machine which can solve problems by accepting data, performing certain operation and presenting reasults of those operation in sequential instruction.
The speed of electronic computer very fast because of the signals can pass at the speed of electricty. Thus milions of calculation can be done in a second. Such speed are beyond the comprehension of the human brain.The processing speed of microprocessor is usually measured in millions of instruction per second. The accuracy of the computer is consistently high, and every calculation is performed with the same accuracy. The degree of accuracy of particular computer depends upon its deign.Digital computer operates on binary digits (bit), combination of 1 and 0, which means all the data or information are kept in computer or its memory.A computer can perform repition task without being bore.It can continuously work for a several hours or days without human intervention after the data and program are fed on it.Computer system is particularly adept a lots of work without any mistake and tiredness. That's why they are used every where because of their reliaility.Computer can perform different task depending upon the different program fed to them. A computer system has storage area called memory.