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From: slerner@sesame.UUCP (Simcha-Yitzchak Lerner)
Newsgroups: net.micro,net.micro.pc
Subject: Re: Leading Edge PC
Message-ID: <369@sesame.UUCP>
Date: Fri, 18-Oct-85 02:42:38 EDT
Article-I.D.: sesame.369
Posted: Fri Oct 18 02:42:38 1985
Date-Received: Wed, 23-Oct-85 04:19:23 EDT
References: <56@noscvax.UUCP>
Organization: Lotus Development Corp
Lines: 32
Xref: watmath net.micro:12447 net.micro.pc:5683

>                     ..... It ran all text-oriented programs without
> a hitch, but balked at any graphics/game programs. In fact, it didn't
> want to display the graphic output of a TurboPascal program I had written 
> and used on my COMPAQ at work. I couldn't find out to my satisfaction
> if this was because of the monitor used, the "Hercules emulator," or a
> compatability problem. 

There probably is no compatibility problem here, as much as a misunderstanding.
The hercules cards (and its imitators) are NOT compatible with the color card.
It is a monochrome graphics card designed to take advantage of the resolution
of the mono monitor.  As a result, you need software that has a driver for 
the Herc.  (eg: Lotus supplies CGA, EGA, Hercules and other drivers with
their products in order to support graphics).  If you are trying to deal
with the system as if it were a color card system, it won't work.

If you want to look into another video card that will give you compaq-like
capabilities (hi-res text and color card compatible graphics on the mono
monitor) look at the STB chaufer (sp).

If your software was written to work specificly with a herc and fails
to run, please tear up this article and forget I opened my mouth :-).

-- 
Opinions expressed are public domain, and do not belong to Lotus
Development Corp.
----------------------------------------------------------------

Simcha-Yitzchak Lerner

              {genrad|ihnp4|ima}!wjh12!talcott!sesame!slerner
                      {cbosgd|harvard}!talcott!sesame!slerner
                       talcott!sesame!slerner@harvard.ARPA