CGA_CompVsRGB_Text.png
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800 × 250 pixels
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Other resolutions:
320 × 100 pixels
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1,280 × 400 pixels
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Summary
Description CGA CompVsRGB Text.png |
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 Public domain false false |
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. Public domain Public domain false false |
Original upload log
The original description page was
here
. All following user names refer to en.wikipedia.
- 2009-09-09 20:56 NewRisingSun 1280×400× (204828 bytes)
- 2007-07-24 23:29 NewRisingSun 1280×400× (181472 bytes)