Display Technologies

Keep an eye out for trouble with this course on display technologies. You’ll look at the details of resolutions and aspect ratios, multiple monitors, projects, graphics cards and more.


  • Troubleshooting Monitors Video — 00:05:42
    • Whether it’s simple driver configuration or opening the whole monitor, troubleshooting displays is critical for techs.

  • Multiple Monitors Video — 00:04:49
    • The CompTIA A+ concentrates on Windows, but every operating system gives you the ability to use more than one monitor.

  • Resolutions and Aspect Ratios Video — 00:06:16
    • Monitor resolutions have increased for decades and a good tech understands common resolutions and aspect ratios.

  • LCD Breakdown Video — 00:04:14
    • A good tech should understand how Liquid Crystal Displays (LCD) work and how to open and repair an LCD monitor.

  • Projectors Video — 00:04:52
    • Projectors come with their own technologies and configurations that a good tech understands.

  • Installing a Graphics Card Video — 00:06:47
    • Graphics cards often require special power, cooling and drivers to take full advantage of the power of most graphics cards.

  • Graphics Cards and Connections Video — 00:13:06
    • Graphics cards come with different features and capabilities that a good tech understands very well.

  • Monitor Technologies Video — 00:07:51
    • Once we understand that all monitors have pixels, it’s easier to understand the different technologies you might find in a modern monitor.


Course description

If you can’t monitor what you’re doing, how do you know it’s going right? Make sure you can keep an eye on your work by familiarizing yourself with display technologies. This course will take you through what you need to know about display technologies for the A+ exam, with individual focus on monitor technologies, LCD breakdown, graphics cards and connections, resolutions and aspect ratios, projectors, troubleshooting monitors and more.

Meet the author

Mike Meyers, affectionately called the “Alpha Geek,” is the industry’s leading authority on CompTIA certifications. He is the president and co-founder of Total Seminars, LLC, a provider of PC and network repair seminars, books, videos and courseware for thousands of organizations throughout the world. Mike has been involved in the computer and network repair industry since 1987 as a technician, instructor, author, consultant and speaker. He has sold over a million IT and certification books, including the best-selling CompTIA A+ Certification All-in-One Exam Guide and CompTIA Network+ Certification All-in-One Exam Guide. He has personally taught thousands of students, including U.S. senators, U.S. Supreme Court Justices, members of the United Nation, every branch of the U.S. Armed Forces, many branches of the Department of Justice, hundreds of corporate clients and academic students at every level.

You're in good company


We use Infosec Skills to provide continuous training to our technicians and to prepare them for various certifications. Infosec Skills allows us to create personalized training programs that focus on each of our technicians’ particular roles and see their progress as they take courses. We also, recommend it to clients to make their IT support teams better.

Caleb Yankus


This has been utilized to bridge the skills gap across our cyber team and to aid them as they prepare for their various certifications. It also has provided a nice learning foundation for our various cyber team members to utilize as we continue to find ways for cross-utilization with operations while minimizing the downtime needed to ensure everyone’s knowledge is the same.

Daniel Simpson


We use Infosec Skills to provide base level knowledge for employees. We also use the services to provide in depth learning for employees as they encounter new technologies. If an employee is is assigned to a new project, we can rely on Infosec Skills to provide a rapid concentrated learning environment. This rapid concentrated learning positions our employees for success.

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