It is obvious that the TRS-80 line of computers suffered severe
fragmentation with differing architectures:
TRS-80 Model I, III, and 4(P) are all obviously of a mostly compatible
architecture.
TRS-80 Model II and 16, 68k based "business" machines
TRS-80 CoCo I, II, III (Dragon)
TRS-80 PC-x, variou
But... i have yet to see a Kyocera... Ed#
In a message dated 4/26/2018 2:25:47 PM US Mountain Standard Time,
cctalk@classiccmp.org writes:
TRS-80 Model 100, 102, 200 (rebadged Kyoceras)
> On Apr 26, 2018, at 14:25, Geoffrey Oltmans via cctalk
> 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 ru
> TRS-80 Model 100, 102, 200 (rebadged Kyoceras)
On Thu, 26 Apr 2018, Ed Sharpe via cctalk wrote:
But... i have yet to see a Kyocera... Ed#
NEC 8201, Olivetti M10 were more of the Kyoto Ceramics machines.
NEC was about 3/8" thicker, but had much more expansion capability.
8085, 8x40 LC
On 04/26/2018 05:51 PM, Mark J. Blair via cctalk wrote:
>> On Apr 26, 2018, at 14:25, Geoffrey Oltmans via cctalk
>> 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
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
>>> wrote:
>>>
>>> TRS-80 Model II and 16, 68k based "business" machines
>> The Models II and 12 were Z80 based machines
I do have a workslate! Odd portable... Thin we have a printer too for it?
Ed# www.smecc.org
In a message dated 4/26/2018 2:56:41 PM US Mountain Standard Time,
cctalk@classiccmp.org writes:
> > TRS-80 Model 100, 102, 200 (rebadged Kyoceras)
On Thu, 26 Apr 2018, Ed Sharpe via cctalk
> On Apr 26, 2018, at 4:51 PM, Mark J. Blair via cctalk
> wrote:
>
>
>> On Apr 26, 2018, at 14:25, Geoffrey Oltmans via cctalk
>> 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 Z8
On Thu, 26 Apr 2018, Geoffrey Oltmans via cctalk wrote:
common architecture. Do you think that if they had, say, revised and
extended the Model I system to color/80 column that the rest would have
been mostly redundant?
D'ya mean like an automobile company making more than one model? Surely
t
On Thu, Apr 26, 2018, 15:59 Bill Gunshannon via cctalk <
cctalk@classiccmp.org> wrote:
> I believe the Z-80 was subordinate to the M68K.
In high-level conceptual term, maybe, depending on the software.
In term of the actual capabilities of the hardware, the Z80 was firmly in
control of _everyth
I believe the Z-80 was subordinate to the M68K.
On Fri, 27 Apr 2018, Eric Smith via cctalk wrote:
In high-level conceptual term, maybe, depending on the software.
In term of the actual capabilities of the hardware, the Z80 was firmly in
control of _everything_ in the machine, including control
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.
On Thu, 26 Apr 2018, Geoff Oltmans via cctalk wrote:
D'oh! I
On Thu, Apr 26, 2018 at 7:18 PM, Fred Cisin via cctalk <
cctalk@classiccmp.org> wrote:
>
> D'ya mean like an automobile company making more than one model? Surely
> there is no need for Toyota to make both a Corolla AND a Camry!
>
>
Hmm... not really sure about that comparison. After all, it's no
The first personal computer I ever came in contact with was the TRS-80 Model 1
(Level II) at a friend of my father's in Long Island around 1979. I learned to
program basic at his house and practiced during the summer at my junior high
school that had a few Model 1's for kids to work with. The sc
Eric Smith via cctalk wrote:
On Thu, Apr 26, 2018, 15:59 Bill Gunshannon via cctalk <
cctalk@classiccmp.org> wrote:
I believe the Z-80 was subordinate to the M68K.
In high-level conceptual term, maybe, depending on the software.
In term of the actual capabilities of the hardware, the Z80 was
On Thu, Apr 26, 2018 at 8:23 PM, Carlos E Murillo-Sanchez via cctalk
wrote:
>
> Interesting. HP made ISA card versions of early (or actually, pre-)
> HP9000-300 that were designated as "Basic Language Processors", hosting a
> 68000 and having GPIB I/O. Interesting beasts. I believe that they wer
W2HX via cctalk wrote:
The first personal computer I ever came in contact with was the TRS-80 Model 1
(Level II) at a friend of my father's in Long Island around 1979. I learned to
program basic at his house and practiced during the summer at my junior high
school that had a few Model 1's for
Glen Slick via cctalk wrote:
On Thu, Apr 26, 2018 at 8:23 PM, Carlos E Murillo-Sanchez via cctalk
wrote:
Interesting. HP made ISA card versions of early (or actually, pre-)
HP9000-300 that were designated as "Basic Language Processors", hosting a
68000 and having GPIB I/O. Interesting beasts.
On Fri, 27 Apr 2018, W2HX via cctalk wrote:
All that "fragmentation" to me was wonderful. Different models,
different capabilities it was magical!
There are two different interpretations of "fragmentation".
Both are implicitly negative.
"Any color you want, as long as it is black" (1909) saves
On 04/26/2018 10:00 PM, Geoffrey Oltmans via cctalk wrote:
> On Thu, Apr 26, 2018 at 7:18 PM, Fred Cisin via cctalk <
> cctalk@classiccmp.org> wrote:
>
>> D'ya mean like an automobile company making more than one model? Surely
>> there is no need for Toyota to make both a Corolla AND a Camry!
>>
On Thu, 26 Apr 2018, Fred Cisin via cctalk wrote:
Then they upgraded the model 1 to reduce the cords and cables, and made the
Model 3. I don't know whether the resemblance to the Northstar Dimension was
deliberate.
I think the primary driver for the Model III was that the Model I would no
Excuse my long post, but I get excited whenever I can talk about the Model 16.
:) I will expound a bit on what was already mentioned.
The Model 16 was an engineering marvel. It was released in 1982 in the same
form factor as the venerable Model II. It was essentially an upgraded Model
II. I
On Fri, Apr 27, 2018 at 8:06 AM, geneb via cctalk
wrote:
> On Thu, 26 Apr 2018, Fred Cisin via cctalk wrote:
>
> Then they upgraded the model 1 to reduce the cords and cables, and made
>> the Model 3. I don't know whether the resemblance to the Northstar
>> Dimension was deliberate.
>>
>>
> I th
On Thu, Apr 26, 2018 at 10:53 PM, Carlos E Murillo-Sanchez via cctalk <
cctalk@classiccmp.org> wrote:
> I see that the actual fragmentation is about how each and everyone got in
> touch with computers, personal or mainframe or whatever! Me, I was in
> junior high and usually understood everything
> On Apr 27, 2018, at 9:08 AM, Geoffrey Oltmans via cctalk
> wrote:
>
> Don't get me wrong. Like you I learned a lot due to all the variety of
> differing machines that were available in the market early on. From a
> business perspective I don't think it made a lot of sense however to have
> so
On Fri, 27 Apr 2018, Bill Gunshannon via cctalk wrote:
CP/M ran on the Model I and the Model III. CP/M was a very adaptable OS.
CP/M required RAM where the TRS80 Model 1 and 3 had ROM.
An unmodified TRS80 (model 1 or model 3) could not run unmodified CP/M.
FMG? marketed a relocated CP/M for
On Fri, 27 Apr 2018, Geoffrey Oltmans via cctalk wrote:
heard that the CRT sold for the Model I had some safety concerns? I think
that was just a rebadged RCA TV set with the tuner section removed?
Yes
Although I think that it is likely that Tandy bought them before a tuner
was put in, rather
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