16 Dec
2018
16 Dec
'18
8:21 p.m.
On 12/15/2018 03:51 PM, Jon Elson via cctech wrote:
On 12/15/2018 02:45 PM, Anders Nelson via cctalk
wrote:
The only place where Flash or similar tech fits is applied to the mass
storage problem such as replicating
a RF/DF32 multihead disk.
The cycle life is a limiting factor for things like swapping drums/disks
but for something that's
read mostly its ok.
Core is RAM, and not serial anyway.
Allison
Serial flash has an endurance between 10K-100K
writes per cell so I
think
that would break down quickly. Wear-leveling on a serial device would be
very slow...
If you intend to use it as main core memory on an old CPU, it will
perform VERY poorly, as these memories need to erase a page at a time,
and the erase takes milliseconds.? So, writing ONE SINGLE word at a
time would invoke an erase cycle each time, slowing it to 1/1000 or
worse the speed of the original core memory.? Also, most old CPUs have
the memory timing built into the CPU, and can't handle a memory that
says "wait".
Jon