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View Full Version : TI 99/4 & 99/4A Computer Experts I Need Your Help!!!



Ryaan1234
04-26-2008, 06:36 PM
Today, I went to a family run estate sale. The person that had owned all this stuff was an employee at Texas Instruments. They said he worked for the "Defense" part of TI. I bought a lot of TI 99/4 and TI 99/4A stuff. I got:

(2) TI 99/4A computers, one loose and one boxed, both have all the hookups, but no monitor.

20+ floppy discs, with various programming tools, and other things. (I'll post a list later, once I assess all of this stuff.)

20+ Cassettes, with programs like "Electrical Engineering Library" on them. Some of the cassettes have nothing written on their label. I don't know if there is anything on the cassettes with blank labels.

19 TI cartridges:

Adventure, TI Writer, Editor Assembler, TI Logo, Terminal Emulator II, TI Extended BASIC, TI Invaders, Munchman, Disk Manager 2, Securities Analysis, Parsec, Music Maker, Mini Memory, Microsoft Multiplan, and Personal Record Keeping.

A TI 99/4 Peripheral Expansion System with 4 cards. (I bought the whole lot of this stuff because I thought this was valuable, one on ebay without any cards just sold for $73. )

2 giant TI binders with reference guides in them

A binded book called "TI 99/4A Console Technical Data"

A TI 99/4a "Speech Synthesis" Attachment

and finally,

A TI Portable Professional Computer
This boat anchor of a computer was only sold to Texas Instrument employees. They stopped selling it less than a year later. (At least, that's what I heard) Now, is this large "portable computer" worth anything?

I also got a boxed "Multi-Function Kit 256k Primary" uhhh... device (That's what it says on the box) It's for the Professional Computer.


I got all of the TI stuff for $25.

so,
Is this stuff worth anything???


I'll post pics of the TI stuff if you guys want.

Steve W
04-28-2008, 10:54 PM
I'd like to see some pics. I don't imagine the TI stuff is worth all that much, except to a TI collector. The portable (luggable) will probably be worth a little something to a classic computer collector. For $25, it sounds like it was an okay deal.

Buyatari
04-28-2008, 11:02 PM
the peb is nice. you should have no trouble getting your money back

snume
05-02-2008, 02:15 AM
What is the model number of the portable? They are very rare and collectible. I estimate at least a couple of hundred dollars. I assume it is the CC-40?

Ryaan1234
05-02-2008, 05:11 PM
What is the model number of the portable? They are very rare and collectible. I estimate at least a couple of hundred dollars. I assume it is the CC-40?

Nope, it's the TI-PPC
http://www.old-computers.com/museum/computer.asp?c=472

Some more info about this stuff:

The Peripheral Expansion System has "P-Code ver. 4", the RS-232 serial card, the 32k RAM expansion, and the floppy controller card.

I took a look at all of the floppies, most of them are the floppies that go with the command modules. A few of the floppies contain information for the TI PPC, as well as the TI PPC versions of Infocom's Infidel and Deadline. There are 3 floppies with something written on them in pencil.

The cassettes are: (2) Line-by-line Assembler, AC Circuit Analysis, Electrical Engineering Library, TI LOGO Sampler, Personal Financial Aids, Pirate Adventure, and some "Newstrack Executive Tape Service" tape (I'm not sure if this tape has a been erased and rewritten, or if it is actually a "Newstrack" narrated tape. There is electrical tape holding this cassette together, so I think the actual tape inside has been replaced.). There are 2 tapes with no identification on them.

I set up everything the other day and it all works fine, though I can't get the TI-99A to read discs with the expansion. I think it's just because I don't have much experience with this computer and I just don't know how to do it right.


I'm going to take and post some pics a little later.