processor
/ˈpɹəʊˌsɛsə(ɹ)/
A person or institution who processes things (foods, photos, applications, etc.).
He is a loan processor with a bank.
A device which processes, which changes something (a computer processor, food processor, etc.).
The food processor shredded the vegetables.
A central processing unit.
A microprocessor.
This computer has two processors, but only one keyboard.