> "The power-on operation does a
"destructive" read of the
> ROM-based firmware. After so many power-ups, the ROM becomes
> unreadable. This was a design issue at the time - the technology
> to fix it did not evolve until the VT200 series."
> Is this true? I've never heard of a ROM being damaged by reading it a
> lot.
It seems not a matter of reading, but reading it with a wrong VPP
voltage applied or something like that. As stated, this is a design issue.