Scanned-display computer graphics

  • Authors:
  • A. Michael Noll

  • Affiliations:
  • Bell Telephone Labs, Inc., Murray Hill, NJ

  • Venue:
  • Communications of the ACM
  • Year:
  • 1971

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Abstract

A television-like scanned-display system has been successfully implemented on a Honeywell DDP-224 computer installation. The scanned image is stored in the core memory of the computer, and software scan conversion is used to convert the rectangular coordinates of a point to the appropriate word and bit in an output display array in core storage. Results thus far indicate that flicker-free displays of large amounts of data are possible with reasonably fast graphical interaction. A scanned image of size 240 X 254 points is displayed at a 30 frame-per-second rate.