DocumentCode
1102019
Title
A Digital Comparator for Use with Computer Displays
Author
Farmer, Nick A.
Issue
3
fYear
1969
fDate
3/1/1969 12:00:00 AM
Firstpage
269
Lastpage
270
Abstract
A digital comparator has been attached to a PDP-4/340 display terminal. This comparator is used to detect the presence of the CRT beam within a specified portion of the display screen.
Keywords
Computer displays, computer graphics, digital comparator, light pen.; Cathode ray tubes; Computer displays; Computer graphics; Delay effects; Electrons; Flip-flops; Logic circuits; Propagation delay; Registers; Shape; Computer displays, computer graphics, digital comparator, light pen.;
fLanguage
English
Journal_Title
Computers, IEEE Transactions on
Publisher
ieee
ISSN
0018-9340
Type
jour
DOI
10.1109/T-C.1969.222641
Filename
1671234
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