Short Notes On Computer Fundamental

1. What is computer ?

Ans- Computer is an electronics device which can perform some task like mathmetical calculation and electronic communication.


2. What is computing? 

Computer takes input data, Process it and gives the output. These process is called computing. 


input →Processing→ Out Put


Input devices -mouse, keybord, OMR, MICR

Processing unit -CPU (system unit)

Out put device -moniter, Speaker, Printer, Projectore


LCD - Liquid crystal display.

CRT - Chatode ray tube

LED - Light emmiting diode

CPU - Central Processing unit

UPS - uninterrupted powere Suply

OMR - Optical marck reader

MICR - Magnetic ink character reader


3. What is Information technology? 

Information technology is the study of organizing, Processing and collecting of computer based information



 4. What is information systems?

Information System is the collection of People, procedure, softwares, hardware and data.


Procedures- it is the collection of rules or guidelines to operate and control the computer. System.

People- People are the end user of computer with us.

Software- Software is the set of instructions which can perform some task, it is also an intangeble part of computer.

Hardware- It is the physical component of computer. which is use to Process the data.

Data- Raugh facts and Figures.



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