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.