Computer Repair Book

1. Introduction to Computer Systems

1.1. Understanding Hardware and Software

1 Hardware

·         Definition: The physical components of a computer system.

·         Examples: CPU, RAM, HDD/SSD, monitor, keyboard, mouse.

·         Functions: Performs the actual computing tasks and provides the physical interface for user interaction.

2 Software

·         Definition: The programs and instructions that run on the hardware.

·         Types:

o    System Software:

§  Operating Systems (OS): Manages hardware resources and provides a user interface (e.g., Windows, macOS, Linux).

§  Utilities: Programs that perform specific tasks like disk cleanup, antivirus, etc.

o    Application Software:

§  Productivity Software: Word processors, spreadsheets, presentation software.

§  Graphics and Multimedia Software: Photo editors, video editors, music production tools.

§  Internet Software: Web browsers, email clients, social media apps.

§  Gaming Software: Video games and gaming platforms.

·         Functions: Provides functionality and services to the user, manages and controls hardware resources.