Computer Basics

1. What is a Computer?

A computer is an electronic device that processes data and performs tasks according to instructions (programs).

2. Basic Components of a Computer

Hardware – The physical parts you can touch (e.g., monitor, keyboard, CPU, mouse).

Software – The programs and operating systems (e.g., Windows, MS Word, games).

3. Major Parts of a Computer

CPU (Central Processing Unit) – The brain of the computer, processes data.

RAM (Random Access Memory) – Temporary memory that helps run programs.

Hard Drive (HDD/SSD) – Storage device for files and software.

Input Devices – Allow you to enter data (keyboard, mouse, scanner).

Output Devices – Show results (monitor, printer, speakers).

4. Types of Computers

Desktop – Regular computers used at desks.

Laptop – Portable computers.

Tablet/Smartphone – Touch-based, portable devices.

5. Common Software

Operating Systems – Windows, macOS, Linux.

Application Software – MS Word, Excel, Google Chrome.

6. Basic Computer Operations

Start and shut down

Open and use applications

Create, save, and manage filesHere's a simple overview of Computer Hardware Basics: