Weaving software into core memory by hand

The software of the Apollo guidance computer was hand woven into rope core memory.

• Category

  Science & Technology

[Disodium85]

What is this from? Id love to see the whole thing.

[oisiaa]

Moon Machines. Look it up on Amazon, I HIGHLY recommend it.

[Udontgetmymetal]

I'll think about this next time I bitch about having to recompile.

[hunchbacked]

I say that this memory was a big joke, and that it did not have the least chance to work, and I maintain it.

[Tracy McIntire]

Definitely not you... Your an idiot. I saw your "video" you made where you claim to know all about this stuff, you make your music and leave the hard stuff to the big boys. Unless you were there when they did it and aren't the 14 y/o kid I think you are, shut your mouth and quit complaining.

[1MtnBoy]

Rope-Fixed Memory was previously used in the US Navy Polaris missile programme & Orion sub-tracking aircraft computers.

NASA used in in the Mariner probes.

Seeburg used it as boot up memory in the M100series jukeboxes as early as 1955 * the one seen in the "Happy Days" TV show intro.

extremely simple and reliable.

Stored data cannot be overwritten and it is impervious to most EMP.

[1MtnBoy]

NASA authorized the building of 75 computers and 138 DSKYs. I am not aware of exactly how many Raytheon / MIT actually built. there are several on display that are said to still be operational. In addition I know of several MIT rope test modules around.

The circuit operation is deceptively simple, 3 wires & a core to store data. DC current is driven down each word line wire to be read. The but line wire is a fixed reference. each core wire is connected to the base of an NPN transistor.

[rawmonkno1]

I'm not aware of anyone that has built a complete replica of the rope memory. It would be a very laborious task to do so. The theory for it is sound though and I might build a smaller proof of concept at some point if I can get my hands on some proper cores. Would love to get one of the rope memory modules that circulates among collectors too but I fear the price would be a bit too steep for me :)

[Rob260259]

Ah.. so you're just talking like a real hoax nut now. Just the regular crap. Thought so.

[BReelistic]

Aren't you proud of your attic anymore Rob. Sadly you deleted that video. :)

[Rob260259]

What attic? What video?



[BReelistic]

Talk about the Pot calling the Kettle black. Better he should use your parent's attic like you posted on one of your videos for a home grown apollo experiment ? LMAO ! TOOO FUNNY !