Need information on TRSDOS 1.3 internals

From: Fred Cisin <>
Date: Fri Dec 6 12:24:00 2002

> > I think you want _TRS-80 Disk and Other Mysteries_. That was one of
> > the Mysteries books I didn't have, but ISTR that Al turned up a copy
> > recently.

On Fri, 6 Dec 2002, Tim Mann wrote:
> No, that only covers Model I TRSDOS 2.x and NEWDOS 2.1. Sellam asked
> about TRSDOS 1.3, which I have to assume means Model III TRSDOS.

But before we deal with the parameters (MOSTLY minor) that differ, he
needs a tutorial on how the directory structure works for that family of
operating systems. Pennington's book provides a good one, unless and
until one of us has an opportunity to sit down with him and go through the

For example, for READING files, he doesn't need to know all of the details
of the H.I.T., but I'm sure that he would appreciate learning it ANYWAY,
and he will need it sometime in the future when he wants to WRITE files.

Grumpy Ol' Fred
Received on Fri Dec 06 2002 - 12:24:00 GMT

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