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From: baxter@uab_cs.UUCP
Newsgroups: net.micro,net.micro.pc
Subject: Re: AT&T PC 6300/7300
Message-ID: <125@uab_cs.UUCP>
Date: Fri, 12-Apr-85 09:10:30 EST
Article-I.D.: uab_cs.125
Posted: Fri Apr 12 09:10:30 1985
Date-Received: Sat, 13-Apr-85 06:41:21 EST
References: <1466@sunybcs.UUCP>
Organization: Univ. of Ala, Bhm.
Lines: 37
Xref: watmath net.micro:10020 net.micro.pc:3683

As the proud owner of an AT&T PC 6300, I can offer the following information
on it:
  1)  It is very compatible with the IBM PC (assuming IBM color graphics
      equipped IBM PC), supporting all text/graphics modes supported by
      IBM's standard color graphics adapter.  It has the advantage of
      supporting the color support with a color or monochrome monitor.
      
      Note:  only AT&T monitors are supported!  In addition an additional
      graphics mode supporting b/w 640 x 400 resolution is available.  
   
  2)  One difference is that GWBASIC (non-rom version) is used rather than
      BASICA (IBM proprietary rom).  The supported commands/keywords are
      identical in both BASIC's.

  3)  The AT&T machine is noticeably faster for computationally intensive
      tasks (approx. 2 to 1).  It has 5 available expansion slots which are
      IBM PC equivalent plus 2 which allow 16 bit data transfers.  Thesys 
      Memory Products makes a memory expansion board for the PC 6300 which
      supports the 16 bit slot (384K plus includes Grafix Partner from
      Brightbill-Roberts & Co. and Thesys's own disk cacheing software,
      both are very good).  Combination is $595.

  4)  I have installed Cermetek's PC 1200 modem board and a hard disk
      controller for an external 20 Mbyte disk from Computer Integration
      Associates (CIA) in New Jersey.  Both are very functional.  The
      hard disk subsystem is designed for either an IBM PC or compatible
      and can support Xenix (based on vendor claims, but not tested).

  5)  The keyboard connection is NOT IBM PC compatible so Keytronic's keyboards
      may not be used.  I have used an HP 2622 terminal emulator from 
      Walker, Richer & Quinn which appears to operate the keyboard at a very
      low level with complete success.

  6)  I have not seen ANY software package which supports the AT&T PC 6300's
      640 x 400 graphics mode.  You would have to do your own programming.

  7)  Turbo Pascal works very nicely.