Calculator virii

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Calculator virii

: Daddy E <daddy14@intrstar.net> wrote:
: > Is a calculator virus at all possible?


: The most damage a virus could do is erase your programs, whic shouldn't be
: a life and death thing.  I have made several programs which lock up the
: calc, and make it so you have to take out the batteries, but, that's all
: the damage possible.


Well, you're correct: because the whole os is cut in rom, replacing the
batteries will solve all ills. A really insidious virus would mess up
some normal function of the calculator, like exponentiation. For
example, every fifth time you use an exponent, it outputs an incorrect
answer.


Or a virus might change the order of precedence for operators, so that
4+7^3 becomes 1331. Or it might corrupt data transfers so you can no
longer take a backup, so your data and programs would be guaranteed
lost.


I wonder that there aren't already some of these out there. :^)