[sdiy] TI-99/4A chips?

[jvastine]

Well like I had said...if I recall correctly. Sorry, I was thinking of the Timex Sinclair 1000. I had the Sinclar ZX81 with the 16k ram module back in early '82. But soon after graduated to an IBM PC with dual floppies & a 10mb hard drive. It's funny how we used to think that was a lot of space. Today one of my laptops has a 500gb hard drive. lol Anyway I quickly graduated from the IBM PC to an IBM 3090, which was a big step in those days.  It's hard to believe that it's been nearly 30 years ago!

---- Eric Brombaugh <ebrombaugh1 at cox.net> wrote: 
On 09/25/2009 06:59 PM, jvastine wrote:
> If I recall correctly that was originally the system designed by Clive Sinclair and the first 2 models were the Sinclair ZX80&  ZX81. It was based on the Zilog Z80 processor, which can be used to do some intersting stuff. I don't these machines to have any real useful dsp or graphiics functionality, but there may be something that one could do with some of the components.

Errr.. Nope.

See here:

http://en.wikipedia.org/wiki/Texas_Instruments_TI-99/4A

It wasn't based on the Z-80, it used a proprietary processor that TI 
made. Had some pretty cool video processing for its day - had decent 
color handling, sprites and other little goodies. Sound came from an 
SN94624 - similar to the SN76489 (for a tie-in to all the noise/chiptune 
stuff we've been talking about recently).

Eric
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