Introduction to computer

Introduction:
                 Computer education is among one of the most demanding fields in technical education. Using computer we can perform any task in a very speedy and accurate way. To use the computer we should first understand the basic components of computer and their working,

Definition of Computer:
                "Computer is an electronic device which accepts data, internally store, processes, and give the meaning full result."

Data and Information: 
                 "The collection of facts and figure is called data". Data is the plural of Datum and it is a Latin word.

Types of Data:
                 There are three types of data.
Alphabetic Data:
                  The data that is in alphabetic form is called alphabetic data. For example : a to z or A to Z.
Numeric Data:
                  The data that is in the form of numbers is called Numeric data. For example: 0 to 9.
Alphanumeric Data:
                  The data, which consist of both Alphabets and Numbers, are called alphanumeric data. For example H.No.784, F12 etc.

Posted by: Wasim Javed