No, computer heat will not affect anybody.
yes but if you breath in the fumes it may give you mouth and or throat cancer :)
only if you breath it in it is dangerous and can give you cancer or ADD or ADHD so yes it can be harmful.
Magnets do not give you cancer.
excessive use can give you cancer
no it cannot give testicular cancer
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 patients.See; http://en.wikipedia.org/wiki/Therac-25To "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.
No, there is no scientific documented evidence that microwaves give you cancer.
No, cancer is not contagious.
No, they do not give you cancer
Computers give off mostly heat, but also give off magnetism in the form of radio waves. Plus their displays give off light energy and the speakers give off sound waves. The fans inside create kinetic energy.
Yes, some chemicals can give you skin cancer.
No, why would magnets give you cancer?