[ras-ter] 
| 1. | Television. a pattern of scanning lines covering the area upon which the image is projected in the cathode-ray tube of a television set. |
| 2. | Computers. a set of horizontal lines composed of individual pixels, used to form an image on a CRT or other screen. |
| ras·ter (rās'tər) n. A scanning pattern of parallel lines that form the display of an image projected on a cathode-ray tube of a television set or display screen. [German, from Latin rāstrum, rake (from the resemblance of the parallel lines to a rake's path); see rēd- in Indo-European roots.] |
raster hardware
The area of a video display that is covered by sweeping the electron beam of the display in a series of horizontal lines from top to bottom. The beam then returns to the top during the vertical flyback interval.
See also CRT, frame buffer.
(1995-03-22)