What is a microprocessor

Microprocessor is a central processing unit composed of one or a few large-scale integrated circuits. These circuits perform the functions of the control unit and the arithmetic logic unit.

Microprocessor can complete the operations of fetching and executing instructions, and exchanging information with external memory and logic components. It is the operation control part of microcomputer. It can be combined with memory and peripheral circuit chips to form a microcomputer.

Compared with traditional CPU, microprocessor has the advantages of small size, light weight and easy modularization. The basic components of microprocessor include register stack, arithmetic unit, timing control circuit, and data and address bus.

Microprocessors have been everywhere. All kinds of microprocessors should be embedded in video recorders, intelligent washing machines, mobile phones and other household appliances, as well as automobile engine control, CNC machine tools and missile precise guidance. Microprocessor is not only the core component of microcomputer, but also the key component of various digital intelligent devices. A large number of general-purpose high-performance microprocessors are also used to build high-end computing systems such as ultra-high-speed supercomputers and mainframe computers in the world.