This is not my own compilation, but the one from David Keil.
His site is gone, but most data is still present in the WayBack machine

This page is a simplified version of David Keil's Software pages.

TRS-80 Model 1/III/4 Software Pages
Last updated on April 8, 2005


Cassette Software Disk Operating Systems Utility Software
Game Software Application Software   TRS-80 Model 1/III/4 Emulator v6.xx documentation
Emulator Enhanced Z80 Instructions v6.10
Image file format description (DMK, JV1, JV3)
Port Mapped PC I/O Command Examples

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