SCM is a kind of integrated circuit chip. It is a small and perfect microcomputer system that integrates the functions of CPU, ram, ROM, various i/o ports, interrupt system, timer / counter with data processing ability into a silicon chip by using VLSI technology.
Single chip microcomputer, also known as single-chip microcontroller, is not a chip that completes a certain logic function, but integrates a computer system into a chip. It is equivalent to a microcomputer. Compared with a computer, a single chip microcomputer only lacks i/o equipment. To sum up: a chip becomes a computer.
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