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Basic Computer Fundamentals & MS Word Notes

1. Introduction to Computer

A computer is an electronic device that accepts data, processes it, stores it, and gives output.

Main Functions of Computer

Input

Processing

Storage

Output

2. Characteristics of Computer

High Speed

Accuracy

Storage Capacity

Automation

Reliability

Multitasking

3. Types of Computers

Based on Size

Micro Computer

Mini Computer

Mainframe Computer

Super Computer

Based on Purpose

General Purpose Computer

Special Purpose Computer

4. Basic Parts of Computer

Hardware

Physical parts of computer.

Examples:

Keyboard

Mouse

Monitor

CPU

Printer

Software

Programs used to operate computer.

Examples:

Windows

MS Word

MS Excel

5. Input Devices

Devices used to enter data into computer.

Examples:

Keyboard

Mouse

Scanner

Microphone

Webcam

6. Output Devices

Devices used to display results.

Examples:

Monitor

Printer

Speaker

Projector

7. Memory of Computer

Primary Memory

RAM

ROM

Secondary Memory

Hard Disk

Pen Drive

CD/DVD

SSD

8. Operating System

An operating system controls all activities of a computer.

Examples:

Windows

Linux

Android

macOS

Functions:

File Management

Memory Management

Device Control

Security

9. Computer Virus

A virus is a harmful program that damages computer data.

Prevention

Install Antivirus

Avoid Unknown Files

Update System Regularly

10. Internet

The Internet is a worldwide network connecting computers.

Uses of Internet

Education

Communication

Online Shopping

Banking

Entertainment

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