Beginning of the 70's I was using a pdp-10 at TSL (Time Sharing Limited, UK)
over a phone line writing logic simulation software in Fortran. Remember it
fondly, especially the number of times I needed to redial in and try to
reconnect to my session. Still smell the teletype. Cost about ?10 for the 20
seconds cpu-time or so just to compile the program!!!
Roll on a few years and I was actually at the console of a 10 at Smiths
doing IC layout graphics interactively on their Lady Jane suite. What a
great single-user machine!
(and I still remember my username and password from TSL, typed it so often
it burned in).
Bob
  -----Original Message-----
 Date: Tue, 24 Oct 2017 18:42:42 +0100
 From: "Rob Jarratt" <robert.jarratt at ntlworld.com>
 To: "'Dave Wade'" <dave.g4ugm at gmail.com>, "'General
Discussion:
        On-Topic and Off-Topic Posts'" <cctalk at classiccmp.org>,
"'Kip
 Koon'"
        <computerdoc at sc.rr.com>
 Subject: Re: Which Dec Emulation is the MOST useful and Versatile?.
 Message-ID: <003101d34cef$7eca53c0$7c5efb40$(a)ntlworld.com>
 Content-Type: text/plain;      charset="us-ascii"
 Ah the PDP10! Although the very first computer I used was a PDP11, it
 was so briefly that I really consider the PDP10 (in DECSYSTEM-20 form)
 to be my first computer. It is easy to emulate in SIMH, although the
 SIMH emulation is of a less capable processor (KS10) and I think KLH10
 is the best emulator for that (but I have never used it).
  
...
 Rob