1 Feb
2023
1 Feb
'23
9:51 p.m.
On Feb 1, 2023, at 3:20 PM, Fred Cisin via cctalk
<cctalk(a)classiccmp.org> wrote:
On Wed, 1 Feb 2023, Ali via cctalk wrote:
It's well known that flash memory (and NVRAM generally) has write limits. I don't
know of any read limits. Some other memories have write limits as well though they are
far larger and generally far less known. I think some of the phase change non-volatile
memory types that seem to emerge from time to time -- FRAM for example -- have write
limits. Modern high density HDAs also do, I believe, because the heads actually come
closer to the surface during write and as a result are more likely to touch the platter.
But read limits? I'm not sure about that. What sort of numbers are we talking
about?
If all else fails there's core memory, which as far as I remember is pretty much
unlimited for both read and write.
paul
But does that matter? If the main purpose is to
be able to refresh the data so it is readable does it matter that the data is not in the
same block as long as it is readable?
Ah, but most of that sort of memory has a finite number of cycles, and wears out due to
use.
Testing it is heavy usage, and brings about an even earlier end of life.
Could we call that a "nosocomial" ("not so comical") deterioratoin
:-?