"Old PC" emulation ?

From: Dave Brown <tractorb_at_ihug.co.nz>
Date: Wed Nov 3 05:00:45 2004

I'm fairly sure it's really a software issue related to timing - I
suppose there could be genuine hardware limitations (speed wise) with
some of the early chips-although I doubt that bus speeds were fast
enough to bring those limitations into play.

DaveB

----- Original Message -----
From: "Fred Cisin" <cisin_at_xenosoft.com>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk_at_classiccmp.org>
Sent: Wednesday, November 03, 2004 10:40 AM
Subject: Re: "Old PC" emulation ?


> On Wed, 3 Nov 2004, Dave Brown wrote:
>> I've not come across it with serial ports but it's a common problem
>> with older hardware that connected to the system bus- I have
>> several
>> older GPIB cards that won't run in anything later than a 286 and an
>> EPROM burner card that won't operate in anything later than a
>> genuine
>> XT.
>
> The Cordata/Corona Data Systems laser printer interface card
> is for PC/XT. Attempting to install the software on 286 or
> above gives a message telling you not to, and mentioning a
> 286 version of the board that may or may not have ever existed.
>
> Is the hardware actually incompatible?
> Or is it a bogus test by the software?
>
>
>
>
Received on Wed Nov 03 2004 - 05:00:45 GMT