View Full Version : TI-99/4 question

March 29th, 2012, 09:48 PM
Will this unit work with the PEB?

I know, probably a dumb question, but I'm not a big TI-er. I have a few 99/4a computers here and one 99/4 along with 3 PEB units and I'd like to build up a nicely loaded 99/4 setup.

I also have a box full of carts and software disks... plus a couple of speech modules.



March 30th, 2012, 05:14 AM

It works with or without the PEB. You'll need the proper card and cable to hook the PEB to the expansion bay on the side of the TI-99/4a. The PEB's came with these. Check out the following.

There is a very active 99er community here.

Here is a site with some good info on the TI-99/4a

March 30th, 2012, 08:15 AM
As noted, the /4 will work fine with a PEB as long as you have the Flex Cable Interface card--and there are no port differences between the /4 and /4A that could trip you up, so no worries there at all. It is a little bit different if you wanted to connect a 99/8 to the PEB--you have to replace the Flex Cable Interface with an appropriate Armadillo Interface card. I haven't run into any PEB cards that won't run with a /4 if they were originally intended to run with a /4A (though I haven't tried any of the 80-Column cards with a /4, so there may be exceptions there). All of the vanilla TI cards work: 32K, RS-232, The various DSSD and DSDD disk controller cards, Horizon Ramdisks, and P-Code. I think I even used a Myarc Personality Card for SASI Hard Disks once without issues (note this is NOT the HFDC, which came much later, and which I haven't tried with a /4, but which should also work fine--same goes for the WHT and SNUG SCSI controllers, they haven't been tested by me, but they should work with a /4).