What type of processor combines multiple CPU functions into a single integrated circuit?

The term "microprocessor" refers to a computer processor that integrates the functions of the central processing unit (CPU) onto a single integrated circuit (IC). This compact design allows for improved performance and efficiency compared to earlier systems that relied on multiple separate components to perform the same tasks.

Microprocessors are the fundamental building blocks of modern computing devices, from personal computers to smartphones, as they handle all the essential operations such as arithmetic calculations, logic functions, control functions, and interfacing with memory and input/output devices within a compact form factor.

The other options represent different concepts. A codec, for instance, refers to a device or software used to encode or decode a digital data stream or signal, primarily in media processing contexts. While "processor chip" and "server processor" may seem related, they do not specifically denote the integration of multiple CPU functions into a single integrated circuit the way that a microprocessor does. A processor chip could be a microprocessor or any chip dedicated to processing, while a server processor typically refers to high-performance processors designed for server applications, which can include microprocessors but don't highlight the integrated nature as centrally as the term "microprocessor" does.