TI 990/4
Toby
I have just rescued a TI 990/4 mini from a dumpster and I would like
to get it back up and running. Its in generally good condition still
but has had its CPU and memory cards removed. Its a 13 slot chassis
version with programmers console.
Does anyone have a CPU or memory card for this machine that they would
be prepared to trade with me?
Many thanks,
Toby
Guntis Sprenne
The unit you have is one of TI's business computers. Depending on what used
to be in the chassis you'll need:
A 990/10 AU/SMI card pair for slots 1 & 2.
A 990/12 AU/SMI card pair for slots 1 & 2
A 990/4 card for slot 1
A 990/5 card for slot 1
I can't remember if the /4 or /5 card had on-board memory (it's been many
years). One of them would function as an entire system since it also had a
serial port on it.
For the /10 and /12 (and the /4 or /5 without on-board memory) a memory
controller in slot 3 and add-on memory boards in slots 4, 5, and 6 are
needed, as well as the external cables connecting the controller to the
add-on memory boards.
Does the chassis have any I/O cards? Either for the TI video terminals
(911's or 914's - a specific card for each terminal) or for the serial
terminals (940's or 931's - the same card would drive either terminal).
Note that a non-standard protocol was used for the communication. There
were emulators made for PC's - both by TI and third parties.
Out of curiosity, are you near South Carolina?
guntis.
"Toby" <to...@coreware.co.uk> wrote in message
news:08454f70-86e9-40c3...@c1g2000yqi.googlegroups.com...
Toby
This one is a /4. According to the build label the missing cards
occupied slot 1 and 2 and where the /4 CPU and a memory card. I
believe however a /4 CPU has some memory on board (2K I believe) so a
CPU on its own would get things going.
I/O card wise it has a pair of cards for talking with a 911, a floppy
controller, a EIA (RS232 I believe) card. I've got the keyboard from
the 911 terminal, but the display unit was junked before I could get
it.
I've setup a dedicated site to track my progress in getting the
machine back to life. I've posted a couple of pictures there. See
http://www.ti990.co.uk/
I'm afraid I'm quite a way (to say the least) from South Carolina as
I'm in the UK.
All the best,
Toby
On 13 July, 07:11, "Guntis Sprenne" <gpsre...@pbtcomm.net> wrote:
> Howdy,
>
> The unit you have is one of TI's business computers. Depending on what used
> to be in the chassis you'll need:
> A 990/10 AU/SMI card pair for slots 1 & 2.
> A 990/12 AU/SMI card pair for slots 1 & 2
> A 990/4 card for slot 1
> A 990/5 card for slot 1
>
> I can't remember if the /4 or /5 card had on-board memory (it's been many
> years). One of them would function as an entire system since it also had a
> serial port on it.
>
> For the /10 and /12 (and the /4 or /5 without on-board memory) a memory
> controller in slot 3 and add-on memory boards in slots 4, 5, and 6 are
> needed, as well as the external cables connecting the controller to the
> add-on memory boards.
>
> Does the chassis have any I/O cards? Either for the TI video terminals
> (911's or 914's - a specific card for each terminal) or for the serial
> terminals (940's or 931's - the same card would drive either terminal).
> Note that a non-standard protocol was used for the communication. There
> were emulators made for PC's - both by TI and third parties.
>
> Out of curiosity, are you near South Carolina?
>
> guntis.
>
> "Toby" <t...@coreware.co.uk> wrote in message
Stuart
dumpsters do I need to start searching to find things like this!?!?
I'm in Southampton, and have a smaller cousin of your TI 990 - a TM
990 (www.avjd51.dsl.pipex.com/tm990/tm990.htm).
Stuart.
Toby
I have a load of TM 990 stuff as well that I got at the same time. The
TI 990 was the development platform for the TM 990 machines.
All the best,
Toby
Stuart
EPROMs - they would be labelled TM990/451?
Stuart.
> > Stuart.- Hide quoted text -
>
> - Show quoted text -