A computer basically consists of the following parts:-
1. I/O devices
2. Memory
3. CPU
The CPU is the brain of the computer irrespective of its size. The CPU normally consists of a large scale integration circuit called Microprocessor and works as central processing unit of a microcomputer.
Input Devices give data or information as an input to the CPU and it processes the data or information given by the devices. Memory stores the data or information, Output Devices give the required data as output to the user.
A digital component in which one microprocessor has been provided to act as a CPU is known as Microcomputer. Desktop computer, laptop computer, palm computer, notebook are the ones which contain only one microprocessor to act as a CPU.
