28 Sep
2015
28 Sep
'15
8:41 a.m.
> I wanted to share this because it's pretty
neat:
>
> https://www.youtube.com/watch?v=0BHIknNa6Eg
>
> It's a ~6 minute tour of a home automation system from the 1980s that
> features graphical floor layouts and touch screen programming. The
system
is built into
the house.
That screen looks so much like my HP 150 that I keep wondering if that?s 
28 Sep
28 Sep
9:16 a.m.
On Sep 28, 2015, at 11:41 AM, John Ball
<ball.of.john at gmail.com> wrote:
what they
used >to build it.
The IR grid for simulating a touchscreen wasn't really HP exclusive.
No, indeed. IR based touchpanels were used in PLATO, as far back as 1974. I think that
may have been where it was invented, but I'm not positive about that.
CDC created touch panels suitable for the curved face of a CRT, using two sheets of
plastic that would touch and make contact when pressed. That was around 1976 or 1977, in
the IST terminal (also for PLATO but not as nice as the original plasma panel terminals).
paul
> I wanted to share this because it's
pretty neat:
>
> https://www.youtube.com/watch?v=0BHIknNa6Eg
>
> It's a ~6 minute tour of a home automation system from the 1980s that
> features graphical floor layouts and touch screen programming. The
system
is built
into the house.
That screen looks so much like my HP 150 that I keep wondering if that?s 
9:21 a.m.
On Sep 28, 2015, at 8:41 AM, John Ball <ball.of.john at gmail.com> wrote:
The IR grid for simulating a touchscreen wasn't
really HP exclusive.
It?s not just the IR grid that makes it look like an HP 150. The green screen is the same
size and the way that it draws the screen looks exactly like what I would expect from a
program running on the HP 150.
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