On 04/26/2018 05:58 PM, Bill Gunshannon via cctalk wrote: > > On 04/26/2018 05:51 PM, Mark J. Blair via cctalk wrote: >>> On Apr 26, 2018, at 14:25, Geoffrey Oltmans via cctalk >>> <[email protected]> wrote: >>> >>> TRS-80 Model II and 16, 68k based "business" machines >> The Models II and 12 were Z80 based machines. The models 16 and 6000 were >> the same Z80 based machines with 68k subsystems added via additional cards >> to allow them to run Xenix. > I believe the Z-80 was subordinate to the M68K. THe reason for that is the 68K was available long after the Z80 (about 4 years). So the base TRS-80 had already evolved to the Mod-II by then.
> The Model 16 was developed > independently of the Model II. While Tandy had a version of Xenix to > sell for it > it shipped with TRSDOS-16. It also ran CP/M-68K rather nicely. It was > a good > machine destined to die when Tandy decided not to be a computer company. That and the base TRS 80 both saturated the market and also left many with a bad taste when it came to expansion... least till they sorted it out. I'd left there before long before it imploded. Allison > bill > >
