File talk:9th floor techsquare.png - Revision history

Jnc: /* Better/more images */ new section

2025-09-22T19:42:03Z

‎Better/more images: new section

Jnc: /* Comments from Brian Silverman */ Comments on some photos

2022-02-15T11:35:53Z

‎Comments from Brian Silverman: Comments on some photos

Larsbrinkhoff: /* Comments from Brian Silverman */ Point to photo collection.

2022-02-15T08:43:28Z

‎Comments from Brian Silverman: Point to photo collection.

Jnc: /* Location of MC */ New, fixed version of MC-KL_Layout.jpg uploaded

2022-02-15T01:30:46Z

‎Location of MC: New, fixed version of MC-KL_Layout.jpg uploaded

Jnc: /* Comments from Brian Silverman */ CONS was elsewhere, I'm pretty sure

2022-02-14T01:03:20Z

‎Comments from Brian Silverman: CONS was elsewhere, I'm pretty sure

Larsbrinkhoff: Comments from Brian Silverman

2022-02-13T17:52:02Z

Comments from Brian Silverman

Jnc: /* Location of MC */ More info on where it is on the 9th floor tech square diagram

2022-01-23T21:10:41Z

‎Location of MC: More info on where it is on the 9th floor tech square diagram

Larsbrinkhoff: /* Additional comments by Tom Knight */ And here.

2022-01-23T16:29:04Z

‎Additional comments by Tom Knight: And here.

Larsbrinkhoff: /* Additional comments by Tom Knight */ See 3D model here.

2022-01-23T16:28:28Z

‎Additional comments by Tom Knight: See 3D model here.

Larsbrinkhoff: /* Location on MC */

2022-01-23T16:27:56Z

‎Location on MC

← Older revision		Revision as of 19:42, 22 September 2025
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	Still, vey thin gruel... [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 12:34, 15 February 2022 (CET)		Still, vey thin gruel... [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 12:34, 15 February 2022 (CET)
		+
		+	== Better/more images ==
		+
		+	Here are [https://www.computerhistory.org/collections/catalog/search-catalog/search/acquisition-number:2022.0073/ Philippe Brou's images], which show a lot more. [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 19:42, 22 September 2025 (UTC)

← Older revision		Revision as of 11:35, 15 February 2022
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	:: Many photos are of the PDP-6. I have tried to arrange them a timeline: http://its.pdp10.se/pdp6-timeline/		:: Many photos are of the PDP-6. I have tried to arrange them a timeline: http://its.pdp10.se/pdp6-timeline/
	:: [[User:Larsbrinkhoff\|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff\|talk]]) 09:42, 15 February 2022 (CET)		:: [[User:Larsbrinkhoff\|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff\|talk]]) 09:42, 15 February 2022 (CET)
		+
		+	What's astonishing, looking at these, is how ''little'' they show. For instance, look at this [https://github.com/larsbrinkhoff/its-archives/blob/master/photos/cadr.jpg MC/CADR] photo; I can't really tell ''where'' it was taken (one can't see enough of the background) - about all one can really glean from it is that it reminded me that all CADRs were always paired with a floor-standing Trident drive (a T-80, I thought; but looking at that pack, it looks like maybe it was a T-300 - at least, this one - maybe others had T-80's).
		+
		+	Without looking at ''every'' photo in the collection, here are some comments on notable ones:
		+
		+	* [https://github.com/larsbrinkhoff/its-archives/blob/master/photos/moses-winston-ka10.jpg moses-winston-ka10] - the low resolution of this one (a problem with almost all of them) limits its utility, but that's ''probably'' ML; behind Winston are the two CPU bays, and then, to their left, are (I think) the pager, and then maybe some of the MD10's? Very hard to see clearly, that could be the tape drive (behind the left side of Moses' head).
		+	* [https://github.com/larsbrinkhoff/its-archives/blob/master/photos/random-9th.jpg random-9th] is potentially rich, but let down by the low resolution. I wonder if, somewhere, some MIT archive has the original photos used to produce this brochure; if so, that would be a tremendous resource. The bottom photo appears to show ML (on the left) and then DM (in the distance); but again, the resolution is so low it's not very useful.
		+	* [https://github.com/larsbrinkhoff/its-archives/blob/master/photos/random-9th-2.jpg random-9th-2] - I'm not even sure which machine that is, at the bottom; the 2 bays at the far end are possibly a KA10 CPU (the two white-outlined panels at the bottom of the bays are, IIRC, air intakes for cooling - maybe a DEC advertising shot of a KA10 will show them).
		+
		+	Still, vey thin gruel... [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 12:34, 15 February 2022 (CET)

← Older revision		Revision as of 08:43, 15 February 2022
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	: The robot backplane wirewrap checker for the 'production' CADRs was on the raised floor about where the Marvin arm had been; where 920 used to be.		: The robot backplane wirewrap checker for the 'production' CADRs was on the raised floor about where the Marvin arm had been; where 920 used to be.
	: I'm fairly astonished that there are no photos of that entire area, at any point. These days there'd be a bazillion. [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 02:03, 14 February 2022 (CET)		: I'm fairly astonished that there are no photos of that entire area, at any point. These days there'd be a bazillion. [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 02:03, 14 February 2022 (CET)
		+
		+	:: Thanks for this, also for the new MC diagram! There are some photos and I have put them here: https://github.com/larsbrinkhoff/its-archives/tree/master/photos
		+	:: Many photos are of the PDP-6. I have tried to arrange them a timeline: http://its.pdp10.se/pdp6-timeline/
		+	:: [[User:Larsbrinkhoff\|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff\|talk]]) 09:42, 15 February 2022 (CET)

@@ Line 21: / Line 21: @@
 :* The Ampex was closer to the CPU, more about in the center of the row of Mx10's (i.e. further to the left than in the diagram).
 : Should I update the diagram to fix those errors? [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 22:09, 23 January 2022 (CET)
 ==Comments from Brian Silverman==

← Older revision		Revision as of 01:03, 14 February 2022
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	The AI PDP-10 was closer to the outer wall (down in the picture), and the moby memory was in front of it (up).		The AI PDP-10 was closer to the outer wall (down in the picture), and the moby memory was in front of it (up).
		+
		+	[[User:Larsbrinkhoff\|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff\|talk]]) 17:52, 13 February 2022‎
		+
		+	: The XGP and the XGP-11, yes. The TV-11 was, IIRC, up in the corner: about where the little room under 916C was. (I think everything except 916A&B and 917 was gone by then.)
		+	: The CONS machine was, I'm pretty sure, in the same room as CHEOPS: 904 or 906 (I forget exactly which). The first CADR was in there, initially at least, too. (I dunno if it ever moved; it might have.)
		+	: The robot backplane wirewrap checker for the 'production' CADRs was on the raised floor about where the Marvin arm had been; where 920 used to be.
		+	: I'm fairly astonished that there are no photos of that entire area, at any point. These days there'd be a bazillion. [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 02:03, 14 February 2022 (CET)

← Older revision		Revision as of 17:52, 13 February 2022
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	:* The Ampex was closer to the CPU, more about in the center of the row of Mx10's (i.e. further to the left than in the diagram).		:* The Ampex was closer to the CPU, more about in the center of the row of Mx10's (i.e. further to the left than in the diagram).
	: Should I update the diagram to fix those errors? [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 22:09, 23 January 2022 (CET)		: Should I update the diagram to fix those errors? [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 22:09, 23 January 2022 (CET)
		+
		+	==Comments from Brian Silverman==
		+
		+	Where the floor plan has room 919 and 920 there was an open space. The XGP-11 and TV-11 was there. Hanging from the ceiling was the now unused Marvin arm. The CONS was also in this area.
		+
		+	The AI PDP-10 was closer to the outer wall (down in the picture), and the moby memory was in front of it (up).

← Older revision		Revision as of 21:10, 23 January 2022
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	Trying to get a better fix of MC. There's a photo here: https://donhopkins.com/home/catalog/images/mc-console.jpg		Trying to get a better fix of MC. There's a photo here: https://donhopkins.com/home/catalog/images/mc-console.jpg
	There seems to be a corner right behind the CPU. Is that room 936? [[User:Larsbrinkhoff\|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff\|talk]]) 17:27, 23 January 2022 (CET)		There seems to be a corner right behind the CPU. Is that room 936? [[User:Larsbrinkhoff\|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff\|talk]]) 17:27, 23 January 2022 (CET)
		+
		+	: No; like I said in [[File talk:Mit-mc.jpg]], "A wall, parallel to the building's long axis, was built roughly between the two pillars above where it says '1401' in red [on the [[:File:9th_floor_techsquare.png]] plan]. MC was in the space between the group of 4 pillars [in that plan, where it says 'Multics']". The thing you can see behind the CPU ''might'' be one of those pillars.
		+	: On the other side of that wall, which is behind the RP04's you can see a tiny bit of in photo, in the gap between the CPU and the RH10, is where MIT-XX was eventually installed. See also the notes at [[Talk:Incompatible_Timesharing_System#MC configuration]].
		+	: If you look at my [[:File:MC-KL_Layout.jpg]] diagram, the photo above is taken from the middle, pointing towards the RH10. You can see a corner of the Ampex on the right-hand edge of the photo.
		+	: Note: my diagram has a couple of minor scaling errors:
		+	:* The CPU was actually further out, closer to the Ampex, than in the diagram (i.e. the row of Mx10 memories, with the RH10 and DF10 at the end, extend further to the left than in that drawing);
		+	:* The Ampex was closer to the CPU, more about in the center of the row of Mx10's (i.e. further to the left than in the diagram).
		+	: Should I update the diagram to fix those errors? [[User:Jnc\|Jnc]] ([[User talk:Jnc\|talk]]) 22:09, 23 January 2022 (CET)

@@ Line 7: / Line 7: @@
 : I should do a diagram of what I can remember of the layout in my time. E.g. the IMPs were indeed on the outer wall under where it says '1401', but the DM PDP-6 was between them and the DM KA10. [[User:Jnc|Jnc]] ([[User talk:Jnc|talk]]) 12:01, 11 January 2022 (CET)
-:: That would be good.  Someone is making a 3D model of the AI PDP-6/10 room (see http://aap.papnet.eu/pub/pdp/10/pdp6_unity2.PNG), and possibly the entire floor eventually. Additional details would be helpful. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 17:27, 23 January 2022 (CET)
+:: That would be good.  Someone is making a 3D model of the AI PDP-6/10 room (see http://aap.papnet.eu/pub/pdp/10/pdp6_unity2.PNG and http://aap.papnet.eu/pub/pdp/10/pdp6_unity4.PNG), and possibly the entire floor eventually. Additional details would be helpful. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 17:27, 23 January 2022 (CET)
 ==Location of MC==

@@ Line 9: / Line 9: @@
 :: That would be good.  Someone is making a 3D model of the AI PDP-6/10 room, and possibly the entire floor eventually. Additional details would be helpful. [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 17:27, 23 January 2022 (CET)
-==Location on MC==
+==Location of MC==
 Trying to get a better fix of MC.  There's a photo here: https://donhopkins.com/home/catalog/images/mc-console.jpg
 There seems to be a corner right behind the CPU.  Is that room 936? [[User:Larsbrinkhoff|Larsbrinkhoff]] ([[User talk:Larsbrinkhoff|talk]]) 17:27, 23 January 2022 (CET)