Single-chip microcomputer is a single-chip microcomputer, referred to as single-chip microcomputer. That is the embedded microcontroller. The single-chip microcomputer adopts VLSI technology to integrate the central processing unit with data processing capability, read-only memory ROM timer/timer, various I/O ports and interrupt systems, random access memory RAM and other functions into one silicon chip. Therefore, the microcontroller can be regarded as a small but complete microcomputer system. Single-chip microcomputers are widely used due to their light weight, small size, and reasonable price. Many electronic products in our daily life, such as telephones, calculators, handheld computers, and electronic toys, have single-chip microcomputers.

Chip is a general term for semiconductor component products, also known as integrated circuits, microcircuits, and microchips. Acting as the motherboard in the computer, it can control the entire system of the computer. Once the chip has a problem, the computer will also face paralysis. The essence of a chip is a very thin electronic component wafer, which is generally covered with dense metal wires. The function of these metal wires is to help the chip and external circuits to be connected together. Today, the electronic products we often come into contact with in our lives all have chips.

From the main point of view, the single-chip microcomputer is a small and complete microcomputer system, and the chip is a way to miniaturize the circuit. Relatively speaking, the structure of the single-chip microcomputer is simpler than that of the chip, but the range of the chip is very wide. The main difference is that most chips cannot write programs, and their functions are relatively single, while single-chip microcomputers can write simple programs, which is very convenient to use. Chips do not have the perfect functions of single-chip microcomputers, which is the difference between the two.