[GreenKeys] the rareness of the KSR 35 vs ASR 35

[Chris Elmquist]

I do that here!

I have a telephone line simulator that lets me dial between "extensions"
(kind of like a mini PBX).  On one port I have an auto-answer modem that
is tied to a Linux PC running "SIMH".  SIMH is a simulation environment
that can simulate many old mini- and mainframe computers from the good
'ol days and allow their actual original operating systems to run.  I can
also run an instance of DtCYBER which is a similar emulation of Control
Data Cyber systems such as the 6000 series supercomputers and 800 series
mainframes.

I can then use any variety of my data terminal equipment, with a connected
acoustic coupled modem and a good 'ol AT&T 2500 deskset to "dial" into the
emulated mainframe.

When I hear the answer tone from the remote end, I put the handset in the
coupler and off it goes...

I get the same signon banner and login prompt that I remember from the early
70s when I did this stuff as a kid.

It is a hoot.  I feel the same "excitement" as I did 35 or more years ago,
when the carrier light on my TI Silent 700 comes on and the carriage
returns and it starts printing that signon banner.  Same thing with
an ASR33, when the type wheel starts flying and it prints the CDC NOS
login prompt.

SIMH,
http://simh.trailing-edge.com/

DtCYBER,
http://members.iinet.net.au/~tom-hunter/

Chris N0JCF

On Friday (12/13/2013 at 11:51AM -0600), Cory Heisterkamp wrote:
> Hey, this is great stuff!
> 
> Which begs the question, could something similar be done today as sort of
> an interactive historical recreation? Either using a local PC as the 'time
> share' machine, or setting up a web-accessible server where scratch files
> could be created and TTY's could "dial" into? Wouldn't that be a kick.
> -Cory
> 
> 
> On Wed, Dec 11, 2013 at 11:53 AM, David Burns <dvdbrns at rcn.com> wrote:
> 
> > See the professor demonstrate absolutely every gory detail of signing on
> > to the dial-up Michigan Terminal System using a 35KSR in 1967.
> >
> > How primitive?  Don't forget to use "Control-Q" as the line terminator!
> >  (Remember, the "Space Age" had barely begun.)
> >
> > http://www.youtube.com/watch?v=cO6asQjQmPM

-- 
Chris Elmquist