What is a Processor?

A processor, or central processing unit (CPU), is a hardware component that's often called the brains of a computer because it processes user inputs (like mouse clicks or keystrokes), performs calculations, and provides output back to the user. Processors consist of complex circuitry that take commands from operating systems and allow computers to interact with software applications. Without processors computers would be virtually useless.

Today's processors typically consist of multiple cores, which enable more efficient dual-processing capabilities. Processors vary in speed and capabilities. Businesses in the market for new computers should base their processor specifications on the type of software the machines will be running. For example, locally-installed software with robust capabilities will likely have different processor requirements than cloud-based applications accessed with a browser.