Date   : Tue, 04 Aug 1992 16:12:16 GMT
From   : zephyr.ens.tek.com!wrgate!amadeus!donk@beaver.cs.washington.edu (Don Kirkpatrick)
Subject: Re: z800?

In article <1992Aug4.050926.4997@panix.com> jeffj@panix.com (Jeff Jonas)
writes:
>In article <7202@ds5000.DAC.Northeastern.edu> bnostran@ds5000.DAC.Northeastern.edu
(Barbara Nostrand) writes:
>>
>>I have a spec sheet for the z800 somewhere so I suppose a bunch of them
>>were made, I think that I may even have seen a price for the things but
>>I never held one.
>
>I too have the "preliminary" spec sheets for the Z800 and Z80,000.
>I doubt they went very far.
>I recall hearing that the Z800 was done in NMOS and the Z180
>replaced it, being CMOS.

The z800 was started in NMOS but changed to a CMOS design when it
became apparent that NMOS was a dead end. Along the way, Hitachi came
out with the z180 and Zilog became a second source for that part. About
this time, Zilog realized the z80,000 (and their z8000) would never be
a hit. They decided to climb on the z180 bandwagon by renaming the
z800 as z280. The z280 has been available since 1989. I know, I
upgraded my CPM system to one over 2 years ago.

--
       -Don Kirkpatrick (donk@amadeus.WR.TEK.COM)
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