21 Apr
1999
21 Apr
'99
2:05 p.m.
<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
21 Apr
21 Apr
2:57 p.m.
At 07:05 PM 4/21/99 -0400, Allison J Parent wrote:
Not that I'm aware of.
Check out : http://www.ramtron.com/products/serial.htm
These guys make core memory in silicon...
--Chuck
10:04 p.m.
Chuck McManis <cmcmanis(a)mcmanis.com> wrote:
Check out :
http://www.ramtron.com/products/serial.htm
These guys make core memory in silicon...
No, it isn't. It's called "ferroelectric RAM", but it is not
ferromagnetic, and doesn't use anything physically resembling cores.
The name "ferroelectric effect" is in point of fact a misnomer.
The interesting thing about FE RAM is that it not only has a limited write
endurance, but also a limited read endurance. After you read a bit too many
times, that bit is worn out. Last I heard they were spec'ing the read
endurance in the billions, which makes it OK as a replacement for disk or
flash memory, but not as a replacement for normal RAM.
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