Chapter 4 Display Devices

THE FOLLOWING COMPTIA A+ 220-901 OBJECTIVES ARE COVERED IN THIS CHAPTER:

  • ✓ 1.10 Given a scenario, evaluate types and features of display devices.
    • Types:
      • LCD:
      • TN vs. IPS
      • Fluorescent vs. LED backlighting
      • Plasma
      • Projector
      • OLED
      • Refresh/frame rates
      • Resolution
      • Native resolution
      • Brightness/lumens
      • Analog vs. digital
      • Privacy/antiglare filters
      • Multiple displays
    • Aspect ratios:
      • 16:9
      • 16:10
      • 4:3

The primary method of getting information out of a computer is to use a computer video display unit (VDU). Display systems convert computer signals into text and pictures and display them on a TV-like screen. As a matter of fact, the first personal computers used television screens because it was simpler to use an ...

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