Introduction

DEFINITION:-

A Computer is an Electronic device that can accept any type of data storing and processing information 
to produce the required result.
For most of the people, computer is a machine used for a calculation or a computation, but actually it is 
much more than that. 
Precisely, “Computer is an electronic device for performing arithmetic and logical operation.” Or 
“Computer is a device or a flexible machine to process data and converts it into information.” 

To know about the complete process that how computer works, we will have to come across the various 
terms such as Data, Processing and Information. First of all we will have to understand these terms in 
true sense. 

DATA:
“Data” is nothing but a mare collection of basic facts and figure without any sequence. When the data is 
collected as facts and figure, it has no meaning at that time, for example, name of student, names of 
employees etc.

PROCESSING:
‘Processing’ is the set of instruction given by the user or the related data to output the meaningful 
information. Which can be used by the user? The work of processing may be the calculation, comparisons 
or the decision taken by the computer.

INFORMATION:
‘Information ’is the end point or the final output of any processed work. When the output data is 
meaning it is called information.
An amazing machine! We are living in the computer age today and most of our day to day activities 
cannot be accomplished without using computers. Sometimes knowingly and sometimes unknowingly we 
use computers. Computer has become an indispensable and multipurpose tool. We are breathing in the 
computer age and gradually computer has become such a desire necessity of life that it is difficult to 
imagine life without it.