[NetBehaviour] TI99 "vintage" home computer system.

clemos cl3mos at gmail.com
Wed Jul 5 16:23:03 CEST 2006

hi marc

it's more like this one :
(the keyboard is far better: true keyboard, no rubber keyboard)
it's a very cool machine, with which you can truly draw directly on
the monitor (a standard TV) with an "optical pen". there were several
extensions and cartidges too, including drawing software (I have a
couple of them...), and even a video incrustation software, with which
you could draw directly onto a video image (refresh rate=1frame per
sec, but very funny)
well, I found mine in the street, near a garbage container, so it's
already quite glitchy... well, it just freezes, in fact.

I love those old computers. the TO7-70, especially, was the one all
french schools had in the 80s (including my country school, of
it was really a fascinating object, because almost no professor knew
how it worked, so most of the time, the computer was remaining unused
in the corner of the classroom, and we were just dreaming about it,
ignoring what it could do, but feeling that it was a very powerful toy
which needed some "secret" knowledge that even our teachers had not.

I have a couple (well, a collection) of old computers like this one
which I'm quite proud of (even if I know I'll bend and destroy it one
day), and others like a Yamaha CX5M, which makes very cool MIDI sounds
(no 8bit, something a bit cleaner), a couple of very old PC laptops
(the coolest is the amstrad PPC512 (10kg)) which I already managed to
show in an art exhibition (we had programmed a couple of glitchy BASIC
apps on them, which made them do crazy sounds and pics)...
the whole collection comes almost from garbages...

must make a page about all this one day ...
when I'll have recorded my LP with all my Yamaha hardware (the CX5M
computer, the two DD5 digital drums I already bended, and my "new" DD6
digital drum...)


On 7/5/06, marc <marc.garrett at furtherfield.org> wrote:
> Hi clemos,
> is this the one?
> http://www.silicium.org/france/thomson/to7-70.htm
> marc
> > oh yeah
> > I love
> > my thomson TO7-70 will do so one day
> >
> > +++++
> > clemos
> >
> > On 7/4/06, marc <marc.garrett at furtherfield.org> wrote:
> >
> >> The TI99 "vintage" home computer system.
> >>
> >> The TI99 is a "vintage" home computer system from 1981 made by Texas
> >> Instruments. You can probably search all the details about it on the
> >> wikipedia or google but the main thing to note was that it hooked up to
> >> your TV and didn't require any sort of special monitor. Over the past
> >> year I've been messing these computer up by short circuiting their video
> >> circuitry and adding mods that will do all sorts of crazy things to the
> >> graphics. Over the past year I have been able to get to TI99 glitch out
> >> in realtime to audio. First this was acheived by hooking the circuits of
> >> other sound making devices directly up to it. Second was by adding a
> >> modification that used little "switches" that glitched the video
> >> circuits in time with any line level audio signal plugged into it. What
> >> I have not done is program the device to do any of the things it does.
> >> The processor is far to slow to render graphics of the complexity and
> >> rate acheived by direct hard-wire hacking. So to sum it all up: The TI99
> >> home computer's internal circuitry has been modified to do all sorts of
> >> strange glitchy things.
> >>
> >> "When spring of 2005 rolled around, I had amassed a formidable army of
> >> circuit bent toys and got the bright idea to start performing with them.
> >> I started been working with Pure Data as a means of recording samples
> >> from the bent toys and manipulating both the toys and the samples in
> >> realtime. It was a distinct move to start performing and to get away
> >> from the through composed musique concrete style I had been comfortable
> >> with. Although it was an interesting spectacle to be up on stage with a
> >> laptop and a table of helplessly tweeked toys, I felt like something was
> >> missing from the performance. Bobbing about wildy over a table of odd
> >> electronics resembled some sort of occult ritual and was a little
> >> removed from the wild sounds coming out of the speakers. I needed to
> >> have the process visualized to ease people into the subdued madness
> >> taking place on stage. After watching a few underground electronic
> >> groups in Denver perform around town I got the hint that live video
> >> projection was a way to draw people into the performance. I had my own
> >> ideas about video though and would be damned if I was going to let some
> >> hack VJ (with all due respect) bust my glitched lo-fi aesthetic with
> >> some super smooth screensaver eyecandy. I had an old TI computer lying
> >> about for speech chip bending purposes but couldn't find the right
> >> cartridge to tap into it. I figured since I wasn't going to use it for
> >> anything else, that I should pop it open and start prodding about. After
> >> the first few contacts I had found pure 8-bit pixellated gold. In May
> >> 2005 I had completed my first TI99 bend and life has never been the same
> >> since."
> >>
> >> http://www.art-rash.com/pixelform/media/TI99/index.html
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