What are bad programs that attack your computer system and mobile devices called

This technology is used to produce high-quality documents that look good on the computer screen and in print.

Technician a says that a dry sump system uses no oil storage sump under the engine. technician b says that a wet sump system uses no oil storage sump under the engine. who is correct?

Donna and her team of five have invented a new gadget for the science exhibition in their college. which intellectual property right will protect their invention?