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Summary

Description
English: CGA 80-column text display on RGB vs. Composite monitors.
Date 24 July 2007 (original upload date)
Source Transferred from en.wikipedia to Commons by Tothwolf using CommonsHelper.
Author NewRisingSun at English Wikipedia

Created with the following BASICA code:

10 COLOR 7,0:CLS:DEFINT A-Z
20 LOCATE 1,1:COLOR 0,7:PRINT "80-column text on the Color/Graphics Adapter, RGB versus Composite              "
30 LOCATE 3,1:COLOR 7,0:PRINT "80-column text is difficult to read on a composite color monitor. The reason"
40                      PRINT "is that due to imperfect separation of the luma/chroma signal components,"
50                      PRINT "colorful swirls will appear around high-resolution patterns, as used in"
60                      PRINT "80-column text."
70                      PRINT "Depending on the choice of text and background color, the result may well be"
80                      PRINT "completely indecipherable:":PRINT
90 COLOR 7,0: PRINT "  Gray on black may not look pretty, but at least it's still readable.":PRINT
100 COLOR 7,1: PRINT "  Gray on blue on the other hand is a lot harder to read.":PRINT
110 COLOR 7,0: PRINT "  Finally, ";:COLOR 5,2:PRINT " magenta on green ";:COLOR 7,0:PRINT " is not legible at all on a composite monitor.":PRINT
120 PRINT "Here are all possible color combinations:"
130 FOR F=0 TO 15:FOR B=0 TO 7
140 COLOR F,B:PRINT "COLOR";
150 NEXT B:NEXT F
160 X$=INKEY$:IF X$="" THEN GOTO 160

Licensing

Public domain This work has been released into the public domain by its author, NewRisingSun at English Wikipedia. This applies worldwide.
In some countries this may not be legally possible; if so:
NewRisingSun grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

Original upload log

The original description page was here. All following user names refer to en.wikipedia.

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24 July 2007

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4f2214139835e9e8e733e2494f29135e7c25188b

177,215 byte

400 pixel

1,280 pixel

File history

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Date/TimeThumbnailDimensionsUserComment
current16:20, 23 August 2023Thumbnail for version as of 16:20, 23 August 20231,280 × 400 (173 KB)PhreneticcCompress
19:52, 25 May 2010Thumbnail for version as of 19:52, 25 May 20101,280 × 400 (200 KB)File Upload Bot (Magnus Manske) {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|CGA 80-column text display on RGB vs. Composite monitors. Created with the following BASICA code: 10 C

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