Is it possible to smell things on computer ?

Sony is actually working on a tv that you can feel the texture of a product and its smell. They found a way to simulate what your body identifies as certain sensations and smells.

If your smelling a burt smell that could mean your hardrive, CPU, etc. is over heating.

Like apple pie, cake or steak? What do you mean?

I guess it would depend on how often you wash your hands.