From the course: CompTIA A+ Core 1 (220-1201) Cert Prep

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Resolutions and aspect ratios

Resolutions and aspect ratios

From the course: CompTIA A+ Core 1 (220-1201) Cert Prep

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Resolutions and aspect ratios

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- I think the best way that a computer technician can show off to another computer technician is by talking about how much resolution their monitors have. It always seems that we're constantly looking for higher and higher resolution monitors that are made out of more and more pixels because more and more pixels makes more clearly defined images. So in this episode, I kind of want to march through a little bit of a history of the different types of resolutions. You're going to be seeing these on the exam, so let's talk about 'em for a moment. Now, the first generations of graphics monitors used what was called a four by three aspect ratio. A four by three aspect ratio basically mimics television. And back in the old days, TVs were all shaped like this, and if we had a monitor, then by golly, we were going to use that resolution. So let's talk about the first generation monitors and their four by three aspect ratio resolutions. The granddaddy of all is VGA, which was 640 by 480. This…

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