☞ computer knowldge 1

 

Chapter 1

 In this chapter  you  will learn about .

 

·         Computer

·         Data processing

·         Characteristic features of computers

·         Computers evolution to their present  from

·         Computers grnrration

·         Characterstic features of each computer grneration

 

Computer.

 

·         The word computer comes from the word “ computer” ,which means ,”to calculate”

·         Thereby , a computer is an electronic device that can perform arithmetic  operations at high speed

·         A computer is also calleda data processor because it can store ,process, and retrieve data whenever desired

Data  Processing.

The activity of procesingh data using computer is called processing

 

    Data

                                                        

 

Capture Data

 

Manipulate Data

 

Output Results

 

Information