Re: Did Commodore cheat with the quad density floppies?

From: Mia Magnusson <mia_at_plea.se>
Date: Thu, 10 Jan 2019 21:05:38 +0100
Message-ID: <20190110210538.00000bf4@plea.se>
Den Wed, 9 Jan 2019 01:49:28 +0000 skrev smf <smf@null.net>:
> 
> On 09/01/2019 01:17, Jim Brain wrote:
> >  If you recall, Compaq was the first "clone"
> 
> Columbia Data Products (MPC 1600) and Eagle Computer (Eagle PC) would 
> disagree.
> 
> The Compaq Portable came soon after.

At the time, companies that had more at stake didn't dare to make a
"too compatible" PC.

It would be interesting if some documents from the days of "MS-DOS
computers" were a thing.

Some electronics magazine made a kit to build a kind-of-almost PC
motherboard with a true ISA bus, but they used different I/O stuff, like
the floppy controller and serial ports that you would expect to find on
an 8085 or maybe Z80 based CP/M computer. I don't know if the price of
the components differed a lot, but most likely it was to avoid being
sued by IBM. At that time, MS-DOS weren't the obvious choice and IIRC
the documentation mostly talks about CP/M-86.

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Received on 2019-01-10 22:00:03

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