16 Aug
2013
16 Aug
'13
12:42 p.m.
As a side note, I heard NSA used to get the first few of any large computer
made regardless of who made it. I never saw any DEC LCGs at any of the
installation I was at, but some areas were into 11/70s.
Paul
On Thu, Aug 15, 2013 at 3:09 PM, Phil Budne <phil at ultimate.com> wrote:
How many KA
was made?
https://sites.google.com/site/mthompsonorg/Home/pdp-10/pdp-10-serial-numbers
The numbers in that list that I helped compile came from published
SPRs (Software Problem Reports), at Stanford, CMU, MIT and machines at
DEC. It doesn't include any systems that ran TENEX.
It looks like there may have been at least:
274 KAs
258 KIs
969 "tall" KLs (1080, 1090)
1445 "short" KLs (1091, 1095, 2040, 2050, 2060, 2065(*))
731 KSs
New models (except for "low" KLs?) tended to start on powers of two.
Hardware engineering may have kept the earliest numbers, and
Software engineering had the next ones.
I regret not having asked/rummaged for more serial numbers when I
worked at DEC Marlboro[ugh]. Had I known about it at the time, I also
would have asked Dan Murphy for a copy of his TECO history collection
(which was on a pack that got discarded).
(*) I'm sure Joe Smith could tell me how I got this list wrong:
http://www.inwap.com/pdp10/models.txt
1095 _might_ refer to either a 1090 or a 1091 with upgraded to
the MCA25 cache/pager upgrade.