On 2020-03-23 16:35, Bob Eager wrote:
On Mon, 23 Mar 2020 08:10:17 -0700
"Robert Armstrong" <b...@jfcl.com> wrote:
FUBAR is the name of a 780 CSR (in the UBA: failed unibus address
register);
perhaps it was used in the 730 as well.
The 730 certainly had a UBA; don?t know if had a specific "FUBAR"
register though. But as far as a physical bar inside the chassis
I've never seen nor heard of anything like that. I have a 730 in the
garage and it doesn't have any such thing. The 730 fit into a single
10-1/2" chassis anyway, so there wasn't even a specific cabinet or
rack dedicated to the 730. And the 730 chassis was basically the
same box as was used for the 11/44, but with a somewhat different
backplane.
I suspect the "FUBAR" at Dan's high school may have been a local
joke :)
Not at all. It existed on the 780, at the very least, so most likely
elsewhere. Mentioned in the VAX11/780 Hardware Handbook (e.g. the
1979-80 edition).
See: http://www.tavi.co.uk/FUBAR.jpg
Yes, the DW780 have a FUBAR register, just as Bob notes. But the thing
is, you will not see anything about it if you open up the cabinet. It is
not a "physical" bar inside the cabinet.
I strongly suspect Bob is right that it might have been some local joke
or hack at Dan's high school.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: b...@softjar.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
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