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| | Please remember to sign them! :-) Thanks! [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 13:56, 9 July 2019 (CEST) | | Please remember to sign them! :-) Thanks! [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 13:56, 9 July 2019 (CEST) |
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| − | == MC configuration ==
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| − | 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:
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| − | * 8 [[MF10]]'s
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| − | * (later) An Ampex? 'external' memory box was added
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| − | * 3 [[RP04]]'s
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| − | * So, therefore, some sort of MASSBUS controller, but since it was a KL10 Model A, not an [[RH20]]; probably an [[RH10]]
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| − | * That would have needed a [[DF10]]
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| − | * A [[TM10]] of some sort; dunno if that had a separate DF10, or shared the one the RH10 used
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| − | * Some sort of high-end DEC magtape drive
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| − | * A [[DL10]]
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| − | * Later, first one, and then a second Trident drive, attached to the DL10 PDP-11
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| − | * The front-end -11 had a bunch of serial lines, probably a [[DH11]]
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| − | * CHAOSNET eventually on the DL10 PDP-11
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| − | * I'm not sure why they initially acquired the DL10+PDP-11 (i.e. what it did to begin with); probably more serial lines
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| − | Well, that's a start. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 17:09, 12 April 2021 (CEST)
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| − | : I have tried to summarize changes to CONFIG > for all machines over the years: https://github.com/PDP-10/its/issues/1168
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| − | : 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. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 17:29, 12 April 2021 (CEST)
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| − | : Where is CONFIG > now? I looked [https://github.com/PDP-10/its/tree/master/src/system here] but it doesn't seem to be there. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 17:47, 12 April 2021 (CEST)
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| − | :: Many (all maybe?) versions are here: https://github.com/PDP-10/its-vault/tree/master/files/system/ [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 17:51, 12 April 2021 (CEST)
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| − | :: Ah, thanks.
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| − | :: 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).
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| − | :: I wonder why they did the whole DL10 thing just to get a few more serial lines. Maybe the DTE20 one was maxed out?
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| − | :: I see from the IOELEV/KLDCP source that the DTE20 -11 had a TU56; I vaguely remember that. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 18:53, 12 April 2021 (CEST)
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| − | ::: 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. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 18:59, 12 April 2021 (CEST)
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| − | :: [[:File:MC-KL Layout.jpg|Here]] is the layout of the machine, as best as I can remember it. The tape drive would not have been in the field of that image.
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| − | :: A couple of notes. I'm sure of the CPU, MF10's, <s>Fabridrek</s> Ampex, RP04's, Tape, Trident and DL10 locations. The RH10/DF10 were ''I think'' in that corner, but I'm not positive, and I don't remember which order. Ditto for the order of the DL10 and its PDP-11 (which I think was an 11/40). I ''think'' the TM10 was there somewhere, but I'm kind of guessing; I don't think it was next to the drive, but it might have been. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 20:34, 12 April 2021 (CEST)
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| − | :: Ah, looking at that image, it's taken from just in front of the Ampex; you can see a corner of it. The RH10/DF10 are indeed in that corner; you can also see a bit of the RP04's behind them. The tape drive would be behind the camera; too bad we don't have a shot in that direction. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 21:51, 12 April 2021 (CEST)
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| − | ::: Very interesting, thanks! I suggest copying your comment to [[File_talk:Mit-mc.jpg]]. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 20:58, 12 April 2021 (CEST)
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| − | :: Probably [[Talk:Incompatible Timesharing System]] would be better. I'll move the whole thread there. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 21:51, 12 April 2021 (CEST)
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