Unit 873 - Comprehensive Computer Fundamentals

1. Introduction to Computer Fundamentals

• Overview of computer systems
  • Definition and purpose of computers
  • Hardware vs. software
• Components of a computer system
  • Input devices (keyboard, mouse, scanner)
  • Output devices (monitor, printer, speakers)
  • Processing unit
  • Data storage

2. Computer Hardware Essentials

• Central Processing Unit (CPU)
  • Function and importance
  • Components: ALU, Control Unit, Registers
• Motherboard
  • Role and key features
  • Slots, buses, and chipsets
• Memory (RAM)
  • Types and functions
  • Volatility and capacity
• Storage Devices
  • Hard drives (HDD vs SSD)
  • External storage options
• Graphics Card
  • Purpose and types
  • Integrated vs dedicated GPUs
• Power Supply Unit (PSU)
  • Power conversion and supply
  • Safety considerations

3. Understanding Operating Systems

• Definition and purpose of operating systems (OS)
• Common operating systems
  • Windows
  • macOS
  • Linux (distributions overview)
• OS Functions
  • Process management
  • Memory management
  • File system management
• User Interfaces
  • Graphical User Interface (GUI)
  • Command Line Interface (CLI)
• File Management
  • File systems and directories
  • File operations and permissions

4. Software Applications and Tools

• Types of software
  • System software vs application software
• Common application software
  • Word processors
  • Spreadsheet programs
  • Presentation software
  • Antivirus and security software
• Software installation and updates
• Productivity tools overview

5. Computer Networking Basics

• Introduction to networks
• Network types
  • Local Area Network (LAN)
  • Wide Area Network (WAN)
  • Wireless LAN (WLAN)
• Network devices
  • Routers, switches, modems
• Network protocols
  • TCP/IP basics
  • DHCP, DNS overview
• Internet connectivity essentials

6. Internet and Web Browsing

• Understanding the Internet
  • Infrastructure and services
• Web browsers
  • Popular browsers overview
  • Browser features and settings
• Search engines
  • Functionality and tips for effective searching
• URLs and web addresses
  • Structure and meaning
• Safe browsing practices
  • Identifying secure websites
  • Avoiding scams and phishing

7. Data Security and Privacy

• Importance of data security
• Common security threats
  • Malware types (viruses, worms, ransomware)
  • Phishing and social engineering
• Protecting data
  • Encryption basics
  • Strong password creation and management
  • Use of security software
• Best practices for online privacy
  • Safe social media use
  • Managing privacy settings

8. Introduction to Programming Concepts

• What is programming?
• Algorithms and problem solving
• Basic programming constructs
  • Variables and data types
  • Control structures (conditionals, loops)
• Introduction to programming languages
  • Overview of Python
  • Overview of JavaScript
• Writing simple programs

9. Computer Maintenance and Troubleshooting

• Routine maintenance tasks
  • Software updates and patches
  • System backups
  • Disk cleanup and defragmentation
• Troubleshooting hardware issues
  • Common symptoms and basic fixes
• Troubleshooting software issues
  • Error messages
  • Reinstalling software
• Preventative measures and best practices