Bubble Memory

From: Jeff Kaneko <Jeff.Kaneko_at_ifrsys.com>
Date: Wed Jan 14 10:54:54 1998

> I did find a description of bubble memory:
> A type of non-volatile memory composed of a thin layer of material that can
> be easily magnetized in only one direction. When a magnetic field is
> applied to circular area of this substance that is not magnetized in the
> same direction, the area is reduced to a smaller circle, or bubble.
> It was once widely believed that bubble memory would become one of the
> leading memory technologies, but these promises have not been fulfilled.
> Other non-volatile memory types, such as EEPROM, are both faster and less
> expensive than bubble memory.
> - John Higginbotham
> - limbo.netpath.net

Yeah, I remember bubble memory. It seems like Fujitsu actually got
to work halfway decent. Despite the cost and speed limitations,
Fluke used it in their high-end E-Disk memories for the 1720 series
instrument controllers. SLow, expensive, but for awhile it was about
all you could use for mass storage in certain hostile environments.


Received on Wed Jan 14 1998 - 10:54:54 GMT

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