Editing CP/M (section)

== Graphics ==
[[File:MBasic 5.21.jpg|thumb|[[MBASIC]] text output displayed on a monochrome monitor typical for that time]]
Although graphics-capable S-100 systems existed from the commercialization of the [[S-100 bus]], CP/M did not provide any standardized graphics support until 1982 with [[Graphics System Extension|GSX]] (Graphics System Extension). Owing to the small amount of available memory, graphics was never a common feature associated with 8-bit CP/M operating systems. Most systems could only display rudimentary [[ASCII art]] charts and diagrams in [[text mode]] or by using a custom [[character set]]. Some computers in the [[Kaypro#Kaypro computers|Kaypro]] line and the [[TRS-80 Model 4]] had video hardware supporting block graphics characters, and these were accessible to assembler programmers and BASIC programmers using the <code>CHR$</code> command. The Model 4 could display 640 by 240 pixel graphics with an optional high resolution board.