Can a person get cancer from a computer computer was programmed to do so?
The short answer is; NO.
None of the components of a computer are capable of giving you
cancer. Any standard off-the-shelf computer is tested and must pass
FCC regulations etc.
There was the case of a software bug in the Therac-25. This was a
machine designed to give radiotherapy to cancer patients. It had a
problem with it's software which accidentally fatally over-dosed
To "get cancer" your computer would need to emit some sort of
radiation. To do that, it would need some 'component' or hardware
to do that. If it does not, then there is no problem.