Computer Software Basics

1. What is Computer Software?

Software is a set of instructions or programs that tell a computer what to do. It is the non-physical part of a computer system (unlike hardware, which you can touch).

2. Types of Software:

A. System Software

Helps run the computer hardware and system.

Operating System (OS) – Manages hardware and software (e.g., Windows, macOS, Linux).

Utility Programs – Tools for maintenance (e.g., antivirus, disk cleanup).

Device Drivers – Help the OS communicate with hardware.

B. Application Software

Designed for end users to perform tasks.

Examples: Microsoft Word, Excel, web browsers, games, media players.

C. Programming Software

Used by developers to write code.

Examples: Compilers, text editors (like VS Code), debuggers.

3. Software Installation and Execution

Installation: Process of setting up software on a computer.

Execution: Running the software to perform tasks.

4. Software Updates

Software needs updates for:

Security patches

Bug fixes

New features or improvements

5. Licenses and Types

Freeware: Free to use (e.g., VLC Media Player)

Shareware: Free trial, pay to continue

Open-source: Free and editable (e.g., Linux)