Fundamental of Computer (Part1)

 

What is computer?

A computer is a machine that can store and process information. It has the ability to store, retrieve, and process data. They are designed to execute applications and provide a variety of solutions by combining integrated hardware and software components

What is Hardware & Software?

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A Physical Structure of Device is known as Hardware. We can see & touch the Hardware whereas Software is a collection of Program we cannot touch and see it.

Use of Computer

• Hospital
  

•   School
•  Bank
•  Railway station
•  Research center etc.

 Block Diagram of Computer

A.L.U  ( Arithmetical Logical Unit) :- The A.L.U performs simple addition, subtraction, multiplication, division, and logic operations, such as OR and AND

CU ( Control Unit ):- It control the all functions of computer which is executed by system and user

Memory :- Memory is a place where data are store it has two types

 

 Rom is  -non-volatile memory. भूलकर नहीं है हमेसा याद रखता है 

RAM  Volatile Memory भूलकर है इसको याद नहीं रहता है