A processor is the logic circuitry that responds to and processes the basic instructions that drive a computer. The term processor has generally replaced the term central processing unit (CPU). The processor in a personal computer or that is embedded in small devices is often called a microprocessor.
Found on http://www.encyclo.co.uk/local/20505
The main chip that has control over the computer. The Amiga uses the Motorola 680x0 and PowerPC series. It can also use an Intel or DEC Alpha CPU as a second processor for intensive tasks, such as rendering. Found on http://www.amigahistory.co.uk/p.html