A BASIC operating environment doesn't really meet the definition of "operating system".

But maybe I am being too pedantic. It wouldn't be the first time.

On 9/29/2022 2:29 PM, Peter Vollan wrote:
Huh? The Model 100 says "Copyr. 1983 Microsoft" when you go into basic. It is common knowledge that Bill wrote the OS himself.

On Thu, 29 Sept 2022 at 09:08, Tommy Phillips <[email protected]> wrote:

    ... and if I recall correctly, the Model 16 ran Xenix, thus being
    the only TRS-80 to run an O/S from Microsoft.

    This, of course, was years before Linux.


    On 9/29/2022 9:04 AM, Chris Trainor wrote:

    But still mostly a brand… the basis for the 80 was the Z80 in
    their early stuff, but like the Model 16 had a 68k in it. 😊   
    Plus even tho the II had a Z80 like the I, III & IV, I thought
    operationally it was substantially different and none of the
    I/III/IV stuff would work on it? (never used one, remember my
    grandfather having one at work, but that’s it) .    Plus the 2 &
    12 were very similar, but the 16, meant to be an ‘upgrade’ from
    the 12 was way different (being 68k based like Apple/Amiga
    products, but not as ‘hip’ as those 😊 )

    --Chris

    *From:* M100 <[email protected]>
    <mailto:[email protected]> *On Behalf Of *Justin
    Poirier
    *Sent:* Thursday, September 29, 2022 8:04 AM
    *To:* [email protected]
    *Subject:* Re: [M100] is the m100 a trs-80? In walks like a, not
    is categorized as a

    TRS-80 starts for "Tandy Radio Shack" and "Z80 microprocessor."
    The M100/T102/T200 have an Intel 80C51 microcontroller, not a
    Zilog Z80, like the Model I, II, III, IV had, and even worse the
    TRS-80 Color Computers have a Motorola 6809, so even in
    themselves, they were not consistent in sticking to their own brand.

    --Justin

    On Wed, 2022-09-28 at 17:09 -0400, [email protected] wrote:

        TRS80 is a brand.  There are substantial differences between
        the different models for the most part.  Especially ones like
        the Model II.  The 1, 3 and 4 had some limited compatibility
        but stuff written for one wouldn't necessarily work in the
        other.  (Except that in theory you could boot a 4 into 3 mode
        to run 3 apps, but that wasn't really 'compatible' ).   So
        the 100 and 102 (where brand changed to Tandy) are like the
        rest and different :).

        Oh and don't forget the whole color computer series was
        vastly different from the gray box models :)

        --Chris

        ------------------------------------------------------------------------

        *From:* M100 <[email protected]> on behalf of
        Will Senn <[email protected]>
        *Sent:* Wednesday, September 28, 2022, 5:04 PM
        *To:* [email protected] <[email protected]>
        *Subject:* [M100] is the m100 a trs-80? In walks like a, not
        is categorized as a

        I've been reading around a bit (all over the world actually)
        and there's a lot of stuff written about and for the
        TRS-80... as though it's a machine, not a designation. I
        wonder, just how close is an m100 to these TRS-80's (Model 1,
        2, 3, etc)? Should I concentrate on stuff that's written
        specifically about the M100? Or, will any old TRS-80 book or
        magazine or zine (TRS8BIT) do? It's pretty confusing.

        I do realize that there are significant differences in
        hardware and screen stuff - color, res, etc. But by and large
        is an m100 a "TRS-80" in that I can reuse code from one to
        the other comfortably (sans specific hardware references), or
        should I not waste my time?

        Looking for insight and reading material for M100 enthusiasts.

        Will


-- Tommy Phillips

    [email protected]
    303-981-4310


--
Tommy Phillips

[email protected]
303-981-4310

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