Display Attributes - CompTIA A+ 220-1201 - 3.1

If you've been in the market for display, you'll notice that the technical specifications vary widely between different displays. There are different options, different specifications, and a number of different settings that differentiate one display from another. We also have to consider how this display might be used. Are we going to use it for gaming?

Will it be used for watching video presentations? Will this simply be a display that's hanging on the wall in a lobby? or will we use this display for presentations? Once we know how a display will be used, we can then reference the technical specifications for that display to find exactly the right display for that particular use.

One technical specification we may want to pay attention to is the pixel density. This tells us how many pixels are contained within 1 in of that display area. If you're in a different part of the world, this might be the number of pixels per centimeter. This allows us to put a physical number on

the clarity of this particular display. If you have a higher pixel density, the display will look much more crisp and clear than a lower pixel density. You also have to think about how this image will be used. Is this an image that will always be displayed on a screen or will we need to print this image out onto a

printer? If so, we may want to look at the printer specifications and determine if the DPI or dots per inch on the printer can properly represent the image that we're seeing on the screen. You can start to see the differences in pixel density when you start comparing how many pixels you can fit into a 1 in x 1

in area. If it's one pixel per inch, then obviously we have a single pixel in that square in area. If it's two pixels per inch, you can see that it is two pixels across and two pixels down. Four pixels per inch are four in each direction. And eight pixels per inch are obviously eight in each direction. You