Computers definition

Computer: Computer is an electronic device that takes data as input. Processes the data and finally it produces the output based on input.

Input----Processing ---- Output.

Components of computer System---

1.Hardware

2.Software

3.Humanware.

4.Operational procedures .

1.Hardware : All the physical component of computer system which we can touch is called as Hardware. Ex: Cpu, Monitor etc.

2.Software: Collection of program is called software.Ex.Operating syste,,ms office etc.

3.Humanware;Human involvement with computer system is called humanware.3 types of human ware .

1.Analyst.

2.programmer

3.Operator.

1.Analyst: The person who has vast knowledge and who analyses a system makes a design to convent manual system to computerize system is analyst.

2.programmer: The person who has less knowledge than analyst and who writes program for assistant is called programmer.

3.Operator: The person who has least knowledge and who only operates a system is called operator.

4.Operational procedures : The rules that will define how to use computer system. How to make change in hardware and software etc.