GPLv3 and Mobile Phones
whitedrought at gmail.com
Sat Dec 9 21:07:23 CET 2006
On 12/9/06, Stefan Schmidt <stefan at datenfreihafen.org> wrote:
> With ROM you refer to chips that can be written only once? I doubt
> that many of such chips are still alive.
> PROM's are used typically where you are producing an end product where you
don't need to update. They're MUCH cheaper than an EPROM, and when you're
turning out millions of a cheap mickey-d's video game toy, being able to
erase the chip doesn't matter
Likewise, they're used when extreme ruggedness is needed, since you actually
burn part of the silicone during writing, it is more secure from tampering,
and less susceptible to damage than a more complex (E)EPROM, EPROMs are
susceptible to UV radiation, and EEPROMs to electrical voltages. Since once
a fuse cannot be changed once it is blown, it is much more difficult to
tamper with the circuit.
However, in this case, we're talking about memory that we don't have access
to, this could be an (E)EPROM or even flash that we just can't send an
erasure signal to.
anyways, just thought I'd let you know
What DO you call whitewater when you live in the desert?
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