User talk:Larsbrinkhoff

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Revision as of 18:59, 12 April 2021 by Larsbrinkhoff (talk | contribs) (MC configuration: No good MC photo.)
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Please remember to sign them! :-) Thanks! Jnc (talk) 13:56, 9 July 2019 (CEST)

MC configuration

So I'm trying to work out MC's configuration. (I know, I know, I could look in CONFIG >, but I'm lazy.) Here's what I remember/can work out:

  • 8 MF10's
  • (later) An Ampex? 'external' memory box was added
  • 3 RP04's
  • So, therefore, some sort of MASSBUS controller, but since it was a KL10 Model A, not an RH20; probably an RH10
  • That would have needed a DF10
  • A TM10 of some sort; dunno if that had a separate DF10, or shared the one the RH10 used
  • Some sort of high-end DEC magtape drive
  • A DL10
  • Later, first one, and then a second Trident drive, attached to the DL10 PDP-11
  • The front-end -11 had a bunch of serial lines, probably a DH11
  • CHAOSNET eventually on the DL10 PDP-11
  • I'm not sure why they initially acquired the DL10+PDP-11 (i.e. what it did to begin with); probably more serial lines

Well, that's a start. Jnc (talk) 17:09, 12 April 2021 (CEST)

I have tried to summarize changes to CONFIG > for all machines over the years:
Most of what you wrote seems spot on. I can see there was a third T-300. Yes, initially the DL10 front end was just a normal DC76 handling terminals. Larsbrinkhoff (talk) 17:29, 12 April 2021 (CEST)
Where is CONFIG > now? I looked here but it doesn't seem to be there. Jnc (talk) 17:47, 12 April 2021 (CEST)
Many (all maybe?) versions are here: Larsbrinkhoff (talk) 17:51, 12 April 2021 (CEST)
Ah, thanks.
It looks like it doesn't say what kind of tape drive it was; it was a TU77, or something. If we ever get good photos of the machine, we should be able to tell (also, if there was a second DF10).
I wonder why they did the whole DL10 thing just to get a few more serial lines. Maybe the DTE20 one was maxed out?
I see from the IOELEV/KLDCP source that the DTE20 -11 had a TU56; I vaguely remember that. Jnc (talk) 18:53, 12 April 2021 (CEST)
I only know of one photo of MC when at MIT, the one on the ITS page, but there's no tape drive. I saw MC in LCM storage, but I don't remember any peripherals. Larsbrinkhoff (talk) 18:59, 12 April 2021 (CEST)