Hey, I wrote an emulator for Prime minicomputers. It's online:

  $ telnet em.prirun.com 8001
  Trying 74.131.82.133...
  Connected to em.prirun.com.
  Escape character is '^]'.

  Welcome to the Prime Computer 50-series emulator, running Primos rev 19.2!

  Login as user guest, password pr1me
  After logging in, use the Prime HELP command for assistance.
  You are welcome to create a directory under GUEST for your files.
  The line erase character is ?
  There are other Primos revs running on ports 8001-8007
  Prime manuals at: http://yagi.h-net.msu.edu/prime_manuals/prirun_scans
  To report bugs or contact the author, send email to [email protected]

  Enjoy your time travels!   -Jim Wilcoxson aka JIMMY

  Login please.
  login guest
  Password?

  GUEST (user 2) logged in Wednesday, 22 Jun 16 16:39:52.
  Welcome to PRIMOS version 19.2.
  Last login Sunday, 12 Jun 16 16:37:20.

  OK,