How scarce (valuable) is core for the PDP-8?

From: Clint Wolff <clintw_at_colorado.cirrus.com>
Date: Thu Apr 22 08:03:46 1999

> From allisonp_at_world.std.com Wed Apr 21 17:10:05 1999
> Reply-To: classiccmp_at_u.washington.edu
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> From: allisonp_at_world.std.com (Allison J Parent)
> To: "Discussion re-collecting of classic computers" <classiccmp_at_u.washington.edu>
> Subject: Re: How scarce (valuable) is core for the PDP-8?
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> <How long does core stay magnetized without power?
>
> Years.
>
> <How many bytes of battery-backed RAM are there in a typical PC?
>
> Not a lot usually something in the 32-128byte range, maybe more.
>
> <Haven't there been contemporary memory devices that use nano-scale
> <cores, to eliminate the battery needs and radiation sensitivity of RAM?
>
> Not that I'm aware of.
>
> Allison
>
>

Actually, there are a few companys making FRAMs. Essentially they use
a small amount of magnetic material to provide non-volatile storage.
They may even be core shaped :)

clint
Received on Thu Apr 22 1999 - 08:03:46 BST