16 Oct
2015
16 Oct
'15
3:37 a.m.
On 2015-10-16 10:08, Dave Wade wrote:
You might be right. I partly based that comment on the RSX P.S.I
product. Not sure how you'd handle this without DECnet, but I obviously
don't the know any VMS specifics. In RSX, you can certainly communicate
over X.25 without the DECnet overhead, but you use NCP to configure your
X.25 links. So you need at least the CEX subsystem, but not the full
DECnet stack.
Johnny
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Johnny
Billquist
Sent: 16 October 2015 09:07
To: cctalk at classiccmp.org
Subject: Re: Contents of DEC 8" floppies
On 2015-10-16 08:14, Mark J. Blair wrote:
for
I have some unused 3M blank preformatted RX02
diskettes. Would those
be usable in an RX01 drive?
Yes. The RX01 and RX02 is the same format. It's only the data part of the
sector that differs.
> I don't know what the VAX PSI software is, but I'm guessing it must be the 11/780 based on the media type. I have zero
use for it, but the
thought
of 11/780 bits being returned to the entropy pool
disturbs me a bit. :)
Can
anybody fill me in on what these disks likely
contain, to help me decide
whether I might like to trade blank floppies for them?
Yes, most likely a distribution intended for people with an 11/78x. The
software was probably available on several different media.
PSI is (as others have mentioned) the packetswitch interface software.
So X.25 for DECnet.
From what I remember it does not need DECnet....