ModelT roms

This is the list of "Option ROMs", extra software that could be added to a Model T by plugging in a chip. For the ROMs which hold BASIC and other builtin software, see Model T System ROMs.

TRS-80 Model 100 / TANDY Model 102

http://www.club100.org/library/librom.html

Option ROMS for REX Most of the existing option roms collected in one zip file by Steve Adolph.

MFORTH Later version of MFORTH than the one included in the zip files from the REX docs above.

PCSG - DISK+ and RAM+

GoldCard - driver software for a ramdisk device

ZETRON - Alphanumeric Paging system. ("Zetron Model 105S").

HOOT. Requires the EME Systems On-Site Weather Logger hardware.

SARDINE PLUS requires the PG Designs SAFE rom expansion hardware

TANDY Model 200

http://www.club100.org/library/librom.html

Option ROMS for REX Most of the existing roms collected in one zip file by Steve Adolph.

NEC PC-8201 / PC-8300

http://www.club100.org/library/librom.html

Option ROMS for REX Most of the existing roms collected in one zip file by Steve Adolph.

Beckman 424 Gas Chromatography instrument

Olivetti M10

https://archive.org/details/multiplan_M10

TANDY Model 600

Multiplan

BASIC