Michael Thompson <michael.99.thompson at gmail.com> wrote: This is almost CERTAINLY derived from the list of CPU (APR) IDs that Alan Martin and I collected, starting at Stevens Tech (reading published SPRs), and continued work on when we were at DEC Marlboro. There are a couple of versions of it at: ftp://ftp.ultimate.com/pdp10/bucs20-anon/decapr/ I just added a newer (2001) version (the 1985/6 files that HAD been available there didn't have either of these): Looks like NIH had a tri-SMP system: 1378 TOPS-10 NIH Bethesda, Md KL1099 SMPA 1381 TOPS-10 NIH Bethesda, Md KL1099 SMPB 1453 TOPS-10 NIH Bethesda, Md KL1099 SMPC And Southern New England Telephone had one as well (in addition to a dual): 1318 TOPS-10 S. New Eng Tel New Haven, Ct KL1090 SMPC 1364 TOPS-10 S. New Eng Tel New Haven, Ct KL1090 SMPA 1366 TOPS-10 S. New Eng Tel New Haven, Ct KL1090 SMPB