[GTALUG] CRT memories [was Re: IBM - cache skirmish story.]

Alvin Starr alvin at netvel.net
Tue Apr 24 19:42:25 EDT 2018

On 04/24/2018 06:06 PM, D. Hugh Redelmeier via talk wrote:

> | From: James Knott via talk <talk at gtalug.org>
> | The delay line was a coil of wire, with the data carried as acoustic
> | wave on it.
> <http://www.computerhistory.org/revolution/memory-storage/8/309>
> <https://en.wikipedia.org/wiki/Delay_line_memory>
> I suspect that all wire delay lines were magnetorestrictive, not
> acoustic.  I don't know that.
At one point there were spring based audio delay devices use for adding 
reverb but they quickly got replaced with memory based solutions when 
dram started showing up.

The huge growth in ram killed lots of very interesting technologies.
Who remembers core memory with the 20x30 inch boards of very thin wires.
Or bubble memory?

Alvin Starr                   ||   land:  (905)513-7688
Netvel Inc.                   ||   Cell:  (416)806-0133
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