What is the difference between a microcontroller and an ordinary computer?

The difference between a single-chip microcomputer and an ordinary computer is that it integrates the three parts of "CPU", "memory" and "I/O port" on one chip. The microcontroller uses very large-scale integrated circuit technology to integrate CPU, memory, various I/O ports, interrupt systems, timers and other functions into one chip; it can be said that one chip becomes a computer.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The difference between a microcontroller and an ordinary computer is that it integrates the three parts of "CPU", "memory" and "I/O port" on one chip.

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Single-Chip Microcomputer is an integrated circuit chip that uses very large-scale integrated circuit technology. Central processing unit CPU with data processing capabilities, random access memory RAM, read-only memory ROM, various I/O ports and interrupt systems, timer/counter and other functions (may also include display driver circuit, pulse width modulation circuit, analog multi-function converter, A/D converter and other circuits) integrated on a silicon chip to form a small and complete microcomputer system, which is widely used in the field of industrial control. From the 1980s, the 4-bit and 8-bit microcontrollers developed at that time to the current 300M high-speed microcontrollers.

MCU is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but integrates a computer system onto a chip. It is equivalent to a microcomputer. Compared with a computer, a microcontroller only lacks I/O devices. In a nutshell: a chip becomes a computer. Its small size, light weight and cheap price provide convenient conditions for learning, application and development. At the same time, learning to use microcontrollers is the best choice for understanding computer principles and structures.

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