Hardware triangle setup:
A 100% hardware triangle setup engine means that polygons may be directly rendered by the 3D graphics processor without the PC having to recalculate the polygons. Since the graphics chip deals with this task directly overall performance is increased.

HDTV (High Definition Television):
All but one of the proposed HDTV systems uses a digital rather than an analog format. The advantages of digital signal transmission include pictures of movie theater quality that are free of snow and ghosts that degrade conventional broadcasts. Images possess a lifelike quality heretofore unseen in television broadcasts. That picture quality is accompanied by sound quality that matches a compact disc. Digital transmission also offers potential for easier interfaces and interference-free interaction with other media such as cable, satellite, fiber and computers.

Hidden Surface Removal (HSR):
A process which consists in suppressing the surfaces which will not be displayed on screen.