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From: rbowman <bowman@montana.com>
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Subject: Re: what's a mainframe, NYT and Stratus (Re: [OT] Dead DEC Punch card times)
Date: 12 Nov 2026 07:28:48 GMT
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On Wed, 11 Nov 2026 19:03:01 -0800, Lars Poulsen wrote:

> Indeed they did - The Rainbow PC-100 from 1982 was a dual-CPU version
> with a VT220 like screen. It had a Z80 to run CP/M and an 8088 to run
> MS-DOS. An engineer would say that with 896 KB of RAM it was superior to
> the IBM-PC; but it did not have an ISA bus, so it would never be
> clone-level compatible.

Another problem is DEC attempted to capture the diskette sales with a 
proprietary format available only from them at a much higher cost than 
generic Elephant or Memorex diskettes. DEC was still living in the mini 
world.