Chapter :1 Fundamentals of Computer part - 1

Chapter :1 

Fundamentals of Computer

Part -1

Learn Computer,

COMPUTER :

C - Commonly; 

O - Oriented; 

M - Machine; 

P - Particularly; 

U - Used; 

T - for Trade; 

E - Education; 

R - and Research.

In this age of computers there is no such activity that cannot be achieved without 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. This book will help you 

to gain an understanding of the basic as well as advanced concepts of computers. It will cover a foundational 

study of the computer hardware, software, operating systems, peripherals, the hardware maintenance etc.

Concept of Computer System :

A computer is an advanced electronic device that takes raw data as input from the user and processes this data under the control of set of instructions (called program) and gives the result (output) and saves output for the future reference and usage.

To know about the working of a computer, first need to understand various terms such as Data, Processing and 

Information. First of all, lets start with three basic terms:-

1. Data : 

Data is a collection of basic facts and figure without any sequence. This data is also called as raw  data. When the data is collected as facts and figures, there is no meaning to it, at that time, for example, name of people, names of employees etc.

2. Processing : 

Processing is the set of instructions given by the user to the related data that was collected 

earlier to output meaningful information. The computer does the required processing by making the 

necessary calculations, comparisons and decisions.

3. Information : 

Information is the end point or the final output of any processed work. This meaningful 

output data is called information.