grinding down chips was Re: QX10 graphics board

[William Donzelli]

> Problem is, SRAM has this annoying tendency of storing data for a really long
> time if it's frozen beforehand.
> It also tends to "remember" data bits that have been stored in the memory
> cells without any writes for a long time.

Magnetic media also has a pretty good "memory", even after many, many
erasings and rewrites. I seem to remember you can get the "history" of a
magnetic area on a disk by looking at the very edges of that area, as it
builds up like growth rings in a tree.

William Donzelli
aw288 at osfn.org