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From: rrw@naucse.cse.nau.edu (Robert Wier)
Newsgroups: comp.os.msdos.programmer
Subject: MSDOS monochrome displays?
Message-ID: <3586@naucse.cse.nau.edu>
Date: 4 Apr 91 19:04:06 GMT
Organization: Northern Arizona University, Flagstaff AZ
Lines: 37


 OK, I'm confused.  I have a situation where I'd like to display
 monochrome graphics in at least 16 shades of gray, preferably
 256 shades of gray.  This is data received from the GOES series
 of weather satellites.

 Now, I've asked everyone here, but mostly people know about color
 cga, ega, and vga boards.  No one seems to be running monochrome.

 I have several questions.  It would seem reasonable that an EGA
 board which can display 16 colors SHOULD be able to display 16
 shades of gray.  But I can't seem to be able to find anything
 on whether this can acutually be done.  We are running a variety
 of boards, such as the EVEREX EV-659 and the Ultimate EGA.  We
 have multi-sync type monitors made by Mitsubishi and others.
 We have software which indicates that we can run Hercules type
 compatible b&w graphics.  However, no where can I find a specification
 of exactly what type of monochrome graphics should be available
 (ie, 640 x 480 x 8 - which would give 256 shades of gray...)

 Now, we have some high priced AT Vista cards in the graphics lab,
 but that's really overkill.  I just need something relatively 
 simple to display sat photos...

 I'd GREATLY appreciate any guidence with this.

 Please E-Mail or post

 THANKS!

 - Bob Wier

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                      College of Engineering
         Northern Arizona University / Flagstaff, Arizona
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