CBEHub

← 1.3 Input/Output (I/O) Devices

Monitors: LCD, OLED and the numbers on the box

Computer Studies · Grade 10 · about 40 minutes

How an LCD makes colour, why an LED monitor is still an LCD, what OLED adds and costs, and how to read size, resolution, refresh rate and aspect ratio.

Sign in to read this lesson

Lessons are for learners and teachers with an account. Browsing the curriculum — subjects, strands and what each sub-strand covers — stays open to everyone.

  • 8 sections of explanation, worked examples and diagrams
  • 1 practice task with hints and worked answers
  • A quiz that marks itself as you go
  • Your progress kept across every subject you take
Sign in Create an account

Other lessons in this sub-strand

  1. Input devices and how they work
  2. Output devices, and how to choose input and output equipment
  3. The keyboard: scan codes, layouts and keypads
  4. Pointing devices: mice, pads and digitisers
  5. Scanners, OMR, OCR and MICR
  6. RFID, biometrics and card readers
  7. Touch screens: resistive, capacitive and infrared
  8. Barcodes, QR codes and paying by scan
  9. Voice, cameras and sensors
  10. Monitors: LCD, OLED and the numbers on the box
  11. Printers, plotters and cost per page
  12. Choosing devices, visiting a workplace, and e-waste