14 Jul
2014
14 Jul
'14
7:21 p.m.
On 2014-07-14 11:03 PM, Fred Cisin wrote:
I have never seen an IBM one with a switch, I have a mushy model M clone
here with Honeywell's name on it with such a switch.
There is a comment in the AT tech ref that says that the keyboard
"listens" to clock and data lines to determine what the protocol is, but
there are no details, and I do not have a functional XT to try an IBM
model M on, but I do recall that when the Ms first came out there was a
separate XT version that did not have the LEDs.
Paul.
> Really?
That's the first I've heard of that. Did they auto-detect, or was
> there a switch/jumper (inside?) to change them over?
On Mon, 14 Jul 2014, Liam
Proven wrote:
I remember switchable keyboards from the 1980s.
Usually there was a
little slide-switch underneath, labelled "PC" or more commonly "XT"
and "AT".
Yep.
BUT, do you remember any such FROM IBM??
--
Grumpy Ol' Fred cisin at xenosoft.com