good wiki

Central processing unit

A central processing unit (CPU) is the primary component of a computer that performs most of the processing inside the computer. It interprets and executes instructions from the computer's memory and controls the operations of other hardware components.

More at Wikipedia

About

It interprets and executes instructions from the computer's memory and controls the operations of other hardware components. The CPU consists of multiple cores, each capable of executing instructions independently. It also includes a control unit, an arithmetic and logic unit, and various caches for faster access to data and instructions. CPUs can be designed for different purposes and architectures, including microprocessors for personal computers and mainframe computers, as well as specialized processors for specific tasks like graphics rendering or artificial intelligence. The Wikipedia page on central processing units provides comprehensive information on the history, architecture, design, and types of CPUs, along with their characteristics, performance measures, and latest developments.