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Chook
Joined: 29 Oct 2008
Posts: 2250
Location: Australia
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 Posted: Thu Mar 15, 2012 9:21 am Post subject: Core memory |
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I picked up this old board the other day. I didn't think much of it till I removed two screws and unfolded the main central plate. Underneath was a large array of core memory! This is the first time I have seen it in person. I have no idea what the boards came from. The chip in this thread came from another board presumably from the same system.
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General failure reading disk in drive A
Who's General Failure and why is he reading my disk? |
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Neon_WA
Joined: 08 Nov 2008
Posts: 7146
Location: Margaret River, West Australia
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debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
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| Posted: Thu Mar 15, 2012 10:03 am Post subject: |
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Lovely find. Core memory is like a work of art 
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chip68
Joined: 19 Oct 2004
Posts: 1024
Location: Central Pennsylvania
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| Posted: Thu Mar 15, 2012 10:29 am Post subject: |
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| debs3759 wrote: | | Lovely find. Core memory is like a work of art |
Indeed, and many the early ones were threaded by hand by seamstresses.
- CMW |
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DaveC
Joined: 06 Mar 2012
Posts: 19
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| Posted: Sun Apr 01, 2012 9:45 pm Post subject: |
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| I ran into a guy who used to work at Control DATA in the early times and he told me about the fact that they'd take their work out to the homes of local women who would "sew" up their work at home and get it picked up later. They got paid by the piecework instead of employing them full time at an assembly facility...that kept their cost per bit under control. |
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smithy
Joined: 27 Apr 2008
Posts: 2906
Location: Sydney, Australia
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| Posted: Mon Apr 02, 2012 3:48 am Post subject: |
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Nice one...did you find this on the verge?
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Chook
Joined: 29 Oct 2008
Posts: 2250
Location: Australia
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| Posted: Mon Apr 02, 2012 4:03 am Post subject: |
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Yes. It was one of two loose boards, the other of which had the white ceramic SMC on it.
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General failure reading disk in drive A
Who's General Failure and why is he reading my disk? |
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smithy
Joined: 27 Apr 2008
Posts: 2906
Location: Sydney, Australia
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| Posted: Mon Apr 02, 2012 5:26 am Post subject: |
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| Chook wrote: | | Yes. It was one of two loose boards, the other of which had the white ceramic SMC on it. |
They are good finds...nothing like that is ever on verges here. Even more recent PCs seem to be picked off in less than an hour |
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silice
Joined: 03 Mar 2009
Posts: 2178
Location: France
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| Posted: Wed Sep 19, 2012 2:35 am Post subject: |
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Hi
Nice find |
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