central processing unit (CPU)The unit of a computer that includes the circuits controlling the interpretation of program instructions and their execution. The CPU controls the entire computer. It receives and sends data through input-output channels, retrieves data and programs from memory, and conducts mathematical and logical functions of a program. Related category COMPUTERS, ARTIFICIAL INTELLIGENCE, AND CYBERNETICSAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |