What is a personal computer?

PC is a personal computer, mainly used by individual consumers. From the perspective of computer architecture, PC belongs to microcomputer. Computer architecture includes supercomputers, large computers (supercomputers), medium-sized computers, small computers and microcomputers. The popularity and wide application of microcomputers should be attributed to the invention of Apple computer and the PC produced by IBM. The difference between PC and Apple computer is that one uses DOS operating system and the other uses the exclusive operating system of Apple computer. Because MAC is only produced exclusively, IBM has published the standards of various modules and components of its products, and other companies can produce compatible computers according to these interface standards. The concepts of PC and compatible computers have become popular. So PC and Mac represent two types of machines respectively. At the same time, the concept of compatible computer came into being. A compatible computer refers to a computer compatible with IBM PC.