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Here I show the 8 classic Texas Instruments TI-99/4A games Parsec, Alpiner, Star Trek, M*A*S*H, Microsurgeon, Moon Mine, Fathom and Buck Rogers. All those games on cartridge work on unexpanded TI-99 computers, but also support the optional speech synthesizer.
I have opened up a pre-sale for HDX boards to modify your TI rs232 card to support the HDX1 DSR http://www.arcadeshopper.com/wp/?page_id=11#!/~/category/id=5051340&offset=0&sort=nameAsc For more information on HDX read on: Have you looked at Fred's site? http://home.vodafonevast.nl/fgkaal/Software/sw_ti99hdx.html#ti99hdx Basically HDX makes a network like connection over the rs232/2 port to a windows PC. It is a DSR replacement on the RS232 card and provides a device HDX1 that connects to software on the windows PC. Providing a "hard disk like" device to access v9t9 format files on the windows hard disk. Theoretically you can point classic99 to the same folder and run/access the files there on your PC without having to convert/move/copy them somewhere else. It also allows the use of TIPRINT on the windows pc to emulate printers and you can print to HDX1.PRINTER on the TI and it comes out on your windows printer. Both of these software packages can run on the PC with just a regular straight through serial cable. But to use them "seamlessly" on the TI requires the RS232 modification which uses the board I am selling. The board loads a new DSR into a battery backed static ram (very similar to minimem's memory as he borrowed that design) and that DSR has instead of RS322/2 it has the HDX1 device. A RS232 splitter cable is required to split RS232/2 off of the main connection for the connection to the PC. The cable required other than that is straight through DB25-DB9. To use HDX without the board you load the program CFHDXS1 on the TI and that allows a limited DM2K interface with HDX1 support built in. This is what I've used for months to transfer files to the TI from the PC, all I do is us TIDIR to put the files in my HDX files directory (or a sub directory) then load the software on the TI, go to HDX1. and there's the files and directories. Long as they are v9t9 format (TIDIR lets you easily convert to that if they are not) they come up and are copy, move, eXecuteable from CFHDXS1 or any program if you have the modified RS232 card. TIPRINT lets you print to RS232.BA=xxxxx. etc.. and it comes out on your PC's printer. Again with the HDX board modification you can print to HDX1.PRINTER and it will figure out the rest. There's also a Disk transfer program that works with the HDX board that will copy your disks from the TI directly to a DSK image on the PC in a "disks" directory. And you can copy DSK files back to real disks on the TI as well. I have used the software version with both Corcomp and TI rs232 cards and they worked fine. I haven't tested with anything else.. The modification of the card for the HDX board ONLY works on a TI card. No 3rd party cards. I am going to purchase a few extra RS232 cards and build them up with the HDX modification and offer them for sale if people are interested in the mod but not the build I am sure a few others are as well based on the quantities ordered from the pre-order. Greg