Re: Did Commodore cheat with the quad density floppies?

Den Tue, 15 Jan 2019 07:18:39 +0200 skrev Marko Mäkelä
<msmakela@gmail.com>:
> On Tue, Jan 15, 2019 at 03:23:59AM +0100, Mia Magnusson wrote:
> >>They then took their old 8080 based motherboards and adapted them
> >>for 8088, CPM-86 came out but then so did MSDOS.
> >
> >That might had been true in North America and Japan but not always
> >in Europe. Afaik for example Ericsson and Nokia never made any CP/M 
> >computers or any computers at all before their first 8088 "DOS" 
> >computers.
> 
> The 2 first models of the Nokia MikroMikko series were not IBM PC 
> compatible. The MikroMikko 1 ran CP/M on 8085 and had a monochrome 
> display. The MikroMikko 2 (which I do not remember ever seeing) ran 
> MS-DOS on 80186.

Interesting, thanks for the update!

I'll have to change my statement to "Ericsson never made any CP/m
computers" :)

> At school, I got first-hand experience from the MikroMikko 3, which
> was running on 80286. I think that it was pretty well built, even
> featuring remote control (viewing the screen or taking over the
> keyboard) from the teacher's unit. The student workstations were
> equipped with two 3.5" DD drives, while the teacher's unit had a hard
> disk and 5.25" HD and 3.5 DD drives. I think that the computers were
> only connected by the keyboard and display switch; I do not remember
> anything like Ethernet. The machines were originally running MS-DOS
> 3.21.
> 
> https://en.wikipedia.org/wiki/MikroMikko

Interesting, especially that they didn't have any file sharing network.

We had file sharing but not keyboard/display sharing on the "Compis"
80186 CP/M-86 school computer.

Btw, another anecdote: When I studied at the equivalent of university
in the early 90's, we had a mix of PC's and dumb terminals connected to
a VAX running VMS. In the main "computer education" classroom with dumb
terminals, there were some kind of hardware switch thing were the
teacher could physically flick a switch at the teachers desk and then
all output to the teachers terminal would be displayed on all
terminals. It was rather fun to log on to the teachers terminal and
prepare to run some software which did display something interesting
(like a tetris clone) and flick the switch and annoy all the other
students :) :)



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