That's what I remembered too. But acoustic couplers were just going away
when I was in grade school so I only ever used them a few times.
Maybe it could theoretically download at 1200, at the expense of going
half duplex or reducing upload to just 75, and assuming the software on
the 100 is optimized and does not update the screen while downloading.
https://upload.wikimedia.org/wikipedia/commons/f/f2/Acoustic_coupler-IMG_7282-7283.jpg
That even looks very similar to the one in the video. The cable is
different and one of the cups looks a little different, but that does
still look very similar.
Maybe it was a case that, just because it says 1200 on the box does not
mean it can ever actually do it in real life, and maybe 300 was the
effective limit and it could only go faster in theory.
Or maybe it was just the full duplex limit, since you're not going to
actually do anything else but full duplex in any normal situation.
You can't go over 600 in a normal situation on a 100 anyway with screen
updates even via direct null-modem. And I bet the 1200 over acoustic
coupler over a phone line requires a perfect phone line, which I doubt a
moving train in the 80's had.
But, the 100 can do 1200, in theory, with optimized software, and the
modem at least claims it can do it, in theory.
--
bkw
On 5/18/21 3:50 PM, lloydel...@comcast.net wrote:
If memory serves me correct, I think the acoustical coupler modems were
limited to 300 baud?
I also remember the old Model 33 teletypes were either 110 baud or 300 baud and
sometimes only 110 baud.
I'm pretty sure he wasn't going for speed using an acoustical coupler modem.
Great video! Brings back great memories.
Lloyd
-----Original Message-----
From: M100 <m100-boun...@lists.bitchin100.com> On Behalf Of Josh Malone
Sent: Tuesday, May 18, 2021 2:42 PM
To: m...@bitchin100.com
Subject: Re: [M100] Good Times. Anyone have a Shilling?
This was a U.K. model, presumably. Did those get released w/ internal modems? I
thought Tandy pulled the modem from the UK model cuz of BT certs.
On Tue, May 18, 2021 at 3:24 PM you got me <ven...@hotmail.com> wrote:
I think an external modem had a higher speed than the one built into the m100.
________________________________
From: M100 <m100-boun...@lists.bitchin100.com> on behalf of Brian K.
White <b.kenyo...@gmail.com>
Sent: Tuesday, May 18, 2021 7:13 PM
To: m...@bitchin100.com <m...@bitchin100.com>
Subject: Re: [M100] Good Times. Anyone have a Shilling?
On 5/18/21 10:28 AM, ~Art wrote:
Just saw this on the Tweeter...
https://twitter.com/i/status/1394004961571352580
Art
... using an external modem on the rs-232 port, wasting the one
already built right into the machine. Philistine!
That neat all-one-piece one is more photogenic than the two loose
black rubber cups and wires though, even if they are smaller, lighter,
and don't unnecessarily consume a useful port.
Or maybe the international model didn't have a modem? I think the
Olivetti is like that, only the NA model has a modem built-in.
--
bkw
--
bkw
