Computer Fundamental
 
What is Computer?
 
A computer is a device that accepts information (in the form of digitalized data) and manipulates it for some result based on a program or sequence of instructions on how the data is to be processed.
 
 
The following schematic diagram gives the layout of a Personal Computer (PC); most single user systems follow this general design:
 
 
IPO cycle [Input-Process-Output cycle]