Path: utzoo!utgpu!water!watmath!clyde!bellcore!wind!tr
From: tr@wind.bellcore.com (tom reingold)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Monochrome ega
Message-ID: <4291@bellcore.bellcore.com>
Date: 15 Dec 87 18:53:02 GMT
References: <16750@topaz.rutgers.edu> <63200013@eclipse> <1828@optilink.UUCP>
Sender: news@bellcore.bellcore.com
Reply-To: tr@wind.UUCP (tom reingold)
Organization: Bellcore, Morristown, Noo Joizy
Lines: 32

In article <1828@optilink.UUCP> cramer@optilink.UUCP (Clayton Cramer) writes:
$ 
$ In fact, any card that claims to be an EGA will work with the IBM Monochrome
$ monitor in EGA graphics modes -- many of them will work in CGA graphics
$ mode as well.  I know for a fact that the Everex EGA card will do so.
$ However, there's a lot of software out there that assumes "monochrome
$ monitor = no graphics", and will insist that you don't have a graphics
$ card installed.  (Reader Rabbit, for example).
$ 
$ Clayton E. Cramer

Not really.  Any card that claims to be an EGA will work with the
IBM monochrome monitor in only *one* graphics mode.  And that mode
is not available on any other IBM card with any other monitor.  So
you can't use an IBM monochrome monitor in CGA mode, at least if
your EGA card is IBM's or just like IBM's.  Therefore, if the
application you are using does not have this particular configuration
in mind, it won't work.

The above does not apply to EGA clone cards that are enhancements
over the IBM, which I have never worked with.  I don't know what
they offer.  I have seen and worked with CGA clone cards that work
on composite monochrome monitors, but nothing with an EGA mode.
Neither have I seen a card with EGA modes that supports composite
monitors.

Oy, what a mess this is!

Tom Reingold                    INTERNET:       tr@bellcore.bellcore.com
Bell Communications Research    UUCP:           rutgers!bellcore!tr
435 South St room 2L350         SOUNDNET:       (201) 829-4622 [work]
Morristown, NJ 07960                            (201) 287-2345 [home]