TRS-80 bootable media request

On Thu, 25 Feb 2010, JP Hindin wrote: The TRS80 III, like the 1, had ROM in low memory. and therefore couldn't run any form of "normal" CP/M. FMG, and a few others, produced a relocated CP/M for model 1 and 3, but it never caught on, AT ALL. When you see mention of a TRS80 Model 1 or 3 CP/M, it normally means that the machine has a small but significant hardware mod to permit switching the memory map around. (That included Omicron, Parasitic Engineering (Howard Fullmer), Montezuma Micro, etc.) There were also hardware mods for the Expansion Interface to run 8" drives. Q: What is the official standard format for 5.25" disks for CP/M? Gary Kildall: 8" SSSD. RS sold "TRS-DOS for Model 3" 1.0,? 1.1?, 1.2, and 1.3, which were ported versions of Model 1 TRSDOS 2.x. DOSPLUS, NEWDOS, LDOS were also available The Model 4 was very similar to the model 3, but had a CTRL key on the keyboard, and directly supported a CP/M compatible memory map. Radio Shack sold "CP/M PLUS" (CP/M 3.0) for it, as well as there being a number of after market 2.x ports. Eventually RS bought rights to LDOS, and released it as "TRSDOS 6.0" for Model 3 and 4, and Randy Cook finally started getting royalties! (The EARLIER history of TRSDOS and Randy Cook is much more interesting) For your model 3, you need "TRSDOS for Model 3 V1.3", and either DOSLUS, NEWDOS80, or LDOS.