Answer
Computer definition
Computer is an electronic machine.Computer receive and process data base on the instruction given to it.Data is given to the computer through input devices such as key board, scanner etc.
Working of computer
The given data is processed by the computer and the output is given to the output devices such as monitor, printer, plotter, speaker etc.The process can be done by Central Processing Unit(CPU) of the computer.
Main parts of computer
A computer is a combination of hardware and software.
