CURSOR_FOR_TV_TYPEWRITER

Published:2009/7/10 22:04:00 Author:May | From:SeekIC

Complete CMOS logic cursorand update system is shownfor system using RAM memory,direct memory access, and writing during vertical intenral for displaying 512 characters per page on TV screen, Extemal 7.5-Hz source is required to make undedine cursorflash to indicate position at which next character will be entered on screen．－D, Lancaster, TV Typewriter Cookbook, Howard W .Sams,Indianapoils,IN,1976,p 128-129



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