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From: kmeis@drupa.UUCP (MeisK)
Newsgroups: net.micro.atari
Subject: Old ATARI 80 column upgrades.
Message-ID: <1041@drupa.UUCP>
Date: Thu, 7-Nov-85 11:18:34 EST
Article-I.D.: drupa.1041
Posted: Thu Nov  7 11:18:34 1985
Date-Received: Fri, 8-Nov-85 07:42:26 EST
Organization: AT&T Information Systems Laboratories, Denver
Lines: 24

Recently there was some discussion of possible 80 column display 
upgrades for the old ATARI computers.  I recently purchased a
RAMROD os board and along with it an OMNIVIEW 8k chip.  This 
chip resides on the RAMROD os board and creates an 80 column
display via software.  The program resides in the 4k of memory
that was previously not accessable.  It is compatable with BASIC 
and can be activated either with a usr call or by hitting a 
sequence of the START, SELECT, and OPTION keys.  I have been
using it with AMODEM4.2 communications software and it has been
working well.  A switch was provided that allows going from 80
column mode to a resident monitor that has features such as
program interupt, dissasemble memory etc..  It even came with 
an 80 column text editing package.  One note however, since the
80 column emulation is done with the high res graphics mode, 
8k of ram is consumed by the program, also a monitor is needed
for quality characters.

				Kevin J. Meis
 				AT&T ISL
				11900 N. Pecos
				Denver, Co.  80234
				303/538-4364