Definition of Computer

The term 'Computer' id derived from the Latin word 'Computare' this means to calculate computer is an advanced /modern electronic device, which takes raw data as input from the user, than processes these data as per given instruction then gives output (result) and stores it for future use.

It is a data processing machine, which can process any kind of numerical and nonnumerical operation under the control of sequential instructions called program. It is a totally user dependent device . It has no its own brain, so it con not think its own. Any electronic machine that can perform 'IPO' cycle is known as computer .

1. Input (data) :
Input is th raw information . It is the collection of letters, numbers, images etc given to the computer to produce the result.

2. Process:
Process is the action taken on data as per given instruction . It is totally inner process of the computer system.

3. Output :
Output is the final data given by computer after data processing . It is also called result .