Introduction

By: Vijay Thapa First Semester Bsc.IT

ISMT Student

Computer System

What is Computer?

Computer stands for “Commonly Operated Machine Particularly Used for Trade Education and Research”

Computer is an electronic device that can accept data, process it and give result.

It is Fast, Accurate, Versatile, Diligent, Automatic and High Storage Device.

Short History of Computer?

Electro Mechanical Era (1900 – 1942)

Mechanical Era (2500yrs ago – 1896)

Electronic Era (1946 - 1961)

Modern Era (1961 – Now)

Types of Computer on the Basis of Size

Mainframe Computer

Super Computer

Mini Computer

Micro Computer

On the Basis of Work

Digital Computer

Analogue Computer

Hybrid Computer

On the Basis of Brand

IBM Compatibles

IBM PC

Apple/Macintosh

Computer System and Peripherals

Computer Hardware that is added to a Computer in order to expand its abilities are Computer Peripherals.

A system of one or more Computers and associated software with common storage.

Keyboard, Mouse, Printer, Projector, etc. are Computer Peripherals.

Computer Hardware

Monitor, Keyboard, Mother Board, Sound card, Memory, etc.

Physical parts of Computer that can be touched.

Computer Software

It is Untouchable.

A set of programs, procedures, functions, associated data or its Documentation.

It exists as ideas, application, concepts, and symbols but it has no physical substance.

Types of Software

Utility Software: AVG, Norton, Panda, Quick, etc.

System Software: Windows OS, Mac, Linux, etc.

Application Software: MS Word, MS PowerPoint, Photoshop, freehand mx, etc.

Thanks

For Watching & Listening