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    • • Preface
    • • Introduction
    • • Table of Contents
  • 1. Theory
    • 1. Concept of Informatics
    • 2. Amount of Information
    • 3. Theory of Signal
  • 2. Basic of DCS
    • 1. Number Systems
    • 2. Code & Coding
    • 3. Computer Arithmetic
    • 4. Computer Logic
  • 3. DCS
    • 1. Definition of DCS
    • 2. Historic Development
    • 3. Hardware
    • 4. Software
    • 5. PC System
    • 6. Computer Networks
  • 4. Windows
    • 1. MS-DOS 6.22
    • 2 Win 3.11
    • 3. Win 95, 98
    • 4. Win XP
    • 5. Windows 7
    • 6. Windows 10
    • 7. Windows 11
  • 5. Unix
    • 1. Linux - Debian operating system
    • 2. Linux - Ubuntu operating system
  • 6. Software Develop
    • 1. Phases of Software Development
    • 2. Programming
  • 7. IT in Practice
    • 7. IT
    • ◦A/D/A
    • ◦Microcontroller
    • ◦Process
    • ◦Internet
    • ◦Intranet
    • ◦SOHO
    • ◦Earning
    • ◦pH
    • ◦C4ISR
    • ◦F1
    • ◦BEV
  •   ▼  
    • 8. Glossary
    • •Specific IT Concepts
    • 9. Inclosure
    • 10. Bibliography
    • 11. WEB Links
    • 12. Index of Site
    • • $ 
  • 3.5. PC
  • 3.5.1. Structure of PC
  • 3.5.2. CPU
  • 3.5.3. DMA
  • 3.5.4. RAM
  •  ► 
  •  ◄ 
  • 3.5.6. IRQ
  • 3.5.7. GPU
  • 3.5.8. Keyboard & Mouse
  • 3.5.5. Hard Disk (HDD / SDD)
  •  ► 
  •  ◄ 
  • 3.5.9. Peripherals
  • 3.5.10. Motherboard
  • 3.5.11. Casing of PC