Accession Number : AD0690514

Title :   RESEARCH ON HIERARCHICAL GRAPHICAL AND LOGICAL ENTITY MANIPULATIONS: TIME-SHARED DISPLAY SYSTEM.

Descriptive Note : Final rept. Nov 67-Jun 68,

Corporate Author : ADAMS ASSOCIATES INC WATERTOWN MASS

Personal Author(s) : Chase,Edward N. ; Westlake,David A. ; Morello,Dominic J.

Report Date : 19 JUL 1968

Pagination or Media Count : 289

Abstract : A special-purpose time-sharing display system is described. The system utilizes black/white and color drum-buffered scopes, light pens and pushbuttons to enable black/white and color console users to draw charts, diagrams, curves, etc., on the face of a display scope. The drawings contain information which is reduced to a condensed digital format called an entity table. This table can then be manipulated by the use of special-purpose software during the drawing action. Graphical information generated by either console user can be displayed in full color on the color scope. Output from interfacing data-manipulating programs can also be displayed. Although the programs reflect the hardware configuration of the Dynamic Experimental Processor (DX-1), the techniques used are applicable to other similarly-configured computer systems. (Author)

Descriptors :   (*DATA PROCESSING, INPUT OUTPUT DEVICES), (*INPUT OUTPUT DEVICES, *TIME SHARING), DISPLAY SYSTEMS, MAN MACHINE SYSTEMS, COMPUTER PROGRAMS, CATHODE RAY TUBES, GRAPHICS, OPERATION

Subject Categories : Computer Programming and Software
      Computer Hardware
      Computer Systems

Distribution Statement : APPROVED FOR PUBLIC RELEASE