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Author Spinrad, R. J. ♦ Ophir, D. ♦ Rankowitz, S. ♦ Shepherd, B. J.
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Keyword Tv display console ♦ Multiconsole computer graphics ♦ Tv graphics terminal ♦ Computer graphics ♦ Inexpensive graphic terminal ♦ Digital tv display ♦ Computer display ♦ Computer raster display ♦ Swept raster tv computer display ♦ Swept raster computer display
Abstract A multiconsole computer display system has been designed that provides very rich displays at low unit cost. Each BRAD (Brookhaven RAster Display) console can plot tens of thousands of points, or up to 4000 characters at 30 frames per second. After an initial display system investment of \$50,000, each display, with teletype, cost less than \$3,000.The technique employed is that of programmatically generating a binary image of the desired display in a computer. The image is written on a rotating drum memory. Independent read heads continuously display the picture, which is generated by swept horizontal lines. A standard TV monitor serves as the display device.The technique has two drawbacks. A computer must compute any image to be displayed. Also, the “pointing” interaction is more difficult. This is because the pointing function gives only the coordinates of the point on the screen. The inverse of the map generation process is required to calculate the coordinates at the input space.
Description Affiliation: Brookhaven National Lab, Upton, NY (Ophir, D.; Rankowitz, S.; Shepherd, B. J.)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2005-08-01
Publisher Place New York
Journal Communications of the ACM (CACM)
Volume Number 11
Issue Number 6
Page Count 2
Starting Page 415
Ending Page 416


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Source: ACM Digital Library