XGA is used to define a specific resolution of 1024 x 768 pixels.  image. The resolution is defined by the number of points an individual who uses the screen to display an image. These points are called pixels. XGA screen has a 1020 horizontal pixels and 768 vertical resolution giving a total of 783,360 pixels on the screen individual.

Any SVGA projector can “handle” XGA resolution computers, thanks to “compression technology”, so if you have a mix of computers with different resolutions, you can still use either resolution projector.

However, if your school is has some higher than XGA resolution computers, whose images you may wish to project, you will best be served by going XGA, As some of the higher resolutions out there, are beyond the reach of SVGA, or even if they can handle the signal, the compressed image degrades enough to be poor or unusable

Over the long term, XGA projectors will have a longer usable life, as computers migrate to even higher resolutions (especially laptops, which it seems are becoming more common with teachers).

XGA Tablet: Located in projectors SVGA, XGA compressed management allows these projectors work with resolutions of 1024 x 768. How good is the XGA tablet that is important factor in the decision process for choosing as an SVGA projector. This is true as the changing market for a laptop computer SVGA screen with XGA.