Date: Wed, 25 Sep 1996 14:58:55 -0400 (EDT) From: Bill/Carolyn Pechter <pechter@shell.monmouth.com> To: terry@lambert.org, freebsd-chat@freebsd.org Cc: info-pdp11@transarc.com Subject: System ID numbers Message-ID: <199609251858.OAA12278@shell.monmouth.com>
next in thread | raw e-mail | index | archive | help
I'm rerouting this from freebsd-current and copying the PDP11 mailing list for corrections and clarifications... My DEC recollections get hazy after 10 years and all the IBM stuff I'm seeing lately blends together. In FreeBSD-current-digest Terry Lambert mentioned a Unique ID on PDP11's. I follow the exerpt with my recollections -- can anyone mention any machine except the Pro350/380 where a Unique ID was used in licensing PDP11 applications or OS software. > From: Terry Lambert <terry@lambert.org> > Date: Wed, 25 Sep 1996 10:48:14 -0700 (MST) > Subject: Re: Licensing Software > > 'course. Pity Intel didn't think on burning a unique CPU > > ID into each chip they made. Even PDP11 had this. > > What can be thought to become a unique FreeBSD machine ID, anyway? > > No PDP11's didn't have a unique ID. At least not the 11/03, 11/05, 11/10, 11/34[a], 11/23, and 11/40 didn't to the best of my memory... Which PDP11 had one? The Pro350/380 used a rom or pal chip. I don't think any LSI stuff through the 11/23 had any id. The 11/70 had an ID available -- on a DIP switch (user settable) but most other machines didn't (and the 11/70 didn't use it -- perhaps the 4 cpu 11/74 did). I assume the 11/45/50/55 had the same thing since it was on the 11/70. Vaxes had it (11/780 11/785 (backplane wire - could be rewired by anyone since it was in the printset...), 11/750 (dip switch), the later machines may have had one -- I think it was on the Microvax. It was a pain on backplane replacement. Bill ex-DEC Field Service (I'd remember having to set a system ID on maintenance board swap...) ------------------------------------------------------------------------------ Bill Pechter/Carolyn Pechter | 17 Meredith Drive, Tinton Falls, NJ 07724, 908-389-3592 | pechter@shell.monmouth.com I'll run Win95 on my box when you pry the keyboard from my cold, dead hands. FreeBSD, OS/2, CP/M, RT11, spoken here.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199609251858.OAA12278>