Processor (noun)

1. A device or program that performs a set of instructions on a computer.
2. A device that performs a set of operations on data, such as sorting, filtering, or converting it.
3. A machine that processes raw materials into finished products.

Origin:

From latin processus ("a going forward, a proceeding") + -or, an agent noun suffix.

Examples:

1. The new computer has a faster processor than the old one.
2. The image processor in the camera improves the quality of the photos.
3. The processor in the phone is responsible for running apps and managing the system.
4. The food processor can chop, grind, and puree ingredients.
5. The industrial processor is used to make plastic pellets from raw materials.