CompTIA A+ Exam 220-901: Display Devices

This path is intended for anyone who wishes to enter the IT professional field, and requires entry-level training to get them started with a career in technical support.


Expected Duration
63 minutes

Information in the computer isn’t any help to you, unless you can see it. In this course, you will learn about the different display technology available, the configuration options for them, and how to troubleshoot any problems that you might have. This course describes different types of display technology and how to configure and troubleshoot them.


Display Technologies

  • start the course
  • describe light emitting diode
  • compare TN, IPS, and PLS
  • describe organic LED
  • describe the OLED examples
  • describe plasma
  • describe refresh rates
  • describe display resolutions
  • describe an aspect ratio
  • compare the display types
  • describe native resolution
  • describe brightness lumens
  • compare analog and digital
  • describe privacy antiglare solutions
  • describe multiple displays
  • describe the display connectors
  • describe digital visual interface
  • describe LCD screen overlays
  • describe aspect ratios

Troubleshooting Displays

  • describe troubleshooting resolution
  • describe troubleshooting projectors

Practice: Identify Video Connectors

  • identify video connectors





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