10/10/2019
What is computer?
COMPUTER
A computer is an electronic device, operating under the control of instructions stored in its own memory,
that can accept data, process the data according to specified rules, produce results, and stores the results for
future use.
OR
Electronic machine operating under the control of instructions stored in its own memory and it:
Accepts data
Manipulates data
Produces results
Stores results
The word computer comes from the word "compute", which means, "to calculate". Hence, people
usually consider a computer to be a calculating device that can perform arithmetic operation at high speed.
In fact, the original objective for inventing a computer was to create a fast calculating machine. Now-a-
days a computer system can perform more than calculations
