A monitor's focus effects the overall sharpness and image quality of its CRT screen. As monitor screens have grown larger from 15 inches to 21 inches, it has become harder to make the electron gun project its beam to the edges of the CRT without distortion. As a result, Cornerstone helped engineer SuperFocus technology, which allows the electron beam to actually change shape, creating the same sharp image in the corners of the screen as in the center and also allowing a flatter screen. To judge focus, it helps to look at a detailed image, especially black characters on a white background. Small footprint monitor cabinet designs help maximize desk space, especially in smaller, cramped cubicles.
High resolution has two main effects on a viewable image.
High resolution screen have more pixels, the phosphor bundles that are used to display an image. Resolution is the density of these pixels available to display a given image. The more pixels that are available to display a given image, the clearer the image will appear. High resolution screens also allow users to display more information. Although two different monitors may be able to display a resolution of 1600 x 1200, one monitor may be able to display that resolution at 70 Hz while the other can display that resolution at 100 Hz.