🚀 go-pugleaf

tom@astro.as.arizona.edu (Thomas J. Trebisky) writes:

>I tried mailing this, but herbert@flp.uucp didn't cut it.

>I have a public domain thing called RX50DRVR that I use with the 1.2 Meg
>drive on my AT to read (and write) the RX50 floppies from my rainbow.
>Works great (and especially handy because the AT is on the net).
>I don't know if the Pro350 RX50 drives are compatible, but I bet they are.

Well, it will probably _read_ a Pro350 floppy, but the AT won't know
what to do with it.  The physical format (tracks and sectors) is the
same (in fact, since DEC saw fit not to provide formatting software
with P/OS lots of us Pro300 users format our floppies on Rainbows, or
on AT's with suitable foreign-format software), but the logical format
(placement and structure of the directory, etc) is totally different.
Rather than being based on the MS-DOS filesystem with boot sectors,
FATs, etc, it uses the Files-11 Level 1 format which was introduced by
DEC with the RSX-11 operating system family and used in slightly
modified form (Level 2) by VMS.  This is a much more sophisticated
file system designed for REAL computers ;{)

>--
>	Tom Trebisky	ttrebisky@as.arizona.edu	(Internet)
>	Steward Observatory	University of Arizona	Tucson, Arizona

-- 
		-  Steve Mitchell	steve@cps.altadena.ca.us
					grian!steve@elroy.jpl.nasa.gov
					ames!elroy!grian!steve
"God is licht, an in him there is nae mirkness ava." -- 1 John 1:5