Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!uunet!proto!joe
From: joe@proto.com (Joe Huffman)
Newsgroups: comp.os.msdos.programmer
Subject: Re: MSDOS monochrome displays?
Message-ID: <1991Apr08.184731.8800@proto.com>
Date: 8 Apr 91 18:47:31 GMT
References: <3586@naucse.cse.nau.edu> <1399@bragi.ctron.com>
Organization: Prototronics @ Sandpoint, Idaho
Lines: 13

dj@bragi.ctron.com (DJ Delorie) writes in an otherwise flawless posting:

>An EGA with a vanilla mono monitor (ie: from an MDA) is limited to
>four greys again, because the monitor only watches two of the TTL
>signals.

EGA mode 0x0F (for use with the "vanilla ... MDA") has four "colors".  
Black, white (green on the IBM 5151), high intensity white, and blink.  
Blinking pixels on the screen would appear to have little use in simulating 
another shade of grey.

-- 
joe@proto.com