New Mobile

Showing posts with label Computer Classification. Show all posts
Showing posts with label Computer Classification. Show all posts

Thursday, April 18, 2013

Computer Technology

Computer is the main media in IT. It is a very useful our life. We can change our life-style by Computer. A computer is a programmable machine. The two principal characteristics of a computer are: it responds to a specific set of instructions in a well-defined manner and it can execute a prerecorded list of instructions (a program).


Modern Computers Defined

Modern computers are electronic and digital. The actual machinery -- wires, transistors, and circuits -- is called hardware; the instructions and data are called software.
All general-purpose computers require the following hardware components: