Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!crdgw1!sixhub!davidsen
From: davidsen@sixhub.UUCP (Wm E. Davidsen Jr)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: image processing on a 486...
Message-ID: <3569@sixhub.UUCP>
Date: 31 Mar 91 00:01:02 GMT
References: <14041@hacgate.UUCP>
Reply-To: davidsen@sixhub.UUCP (bill davidsen)
Distribution: na
Organization: *IX Public Access UNIX, Schenectady NY
Lines: 32

In article <14041@hacgate.UUCP> sahtirn@ipla01.hac.com (Walter and Bill) writes:

| * I need to display 8-bit (256-level) grey scale with a minimum of 512x640 
| resolution (and square pixels!).  I have been told that there is an enhanced 
| VGA mode which supports this.  Which compilers and graphics cards are able
| to work in this mode, if any?  I would like to stay as "mainstream" as 
| possible, e.g. paradise card, turbo c.

  Since the physical aspect ratio of most VGA monitors is 4:3 you will
either use that ratio or skip using a bunch of your screen. There are
companys which make vertical greyscale monitors (so called "full page"
monitors) but they are pricey, like many things which are sold in niche
markets.

  It would probably be cheaper to buy a 1024x768 card, a standard VGA
(color) monitor, and use part of the screen. You can get monitors up to
20 inch, although you better have deep pockets. at the 14-16 inch size
it's pretty affordable, and you can buy from established companies.

Ballpark figures:
  1024x768x256 card		$ 200	(ex: SWAN)
  14 inch monitor		$ 600	(ex: NEC 3D non-multisync cheaper)
  16 inch monitor		$ 900	(ex: NEC 4D)
  20 inch monitor		$1900	(ex: NEC 5D)

These brands are for example, but they represent stuff which has been
selected at work for technical reasons.
-- 
bill davidsen - davidsen@sixhub.uucp (uunet!crdgw1!sixhub!davidsen)
    sysop *IX BBS and Public Access UNIX
    moderator of comp.binaries.ibm.pc and 80386 mailing list
"Stupidity, like virtue, is its own reward" -me