Microcomputer is referred to as microcomputer, commonly known as computer, its accurate title should be microcomputer system. It can be simply defined as an entity composed of the necessary external devices and software configured on the basis of the microcomputer hardware system.
There are three levels of microcomputer system from global to local: microcomputer system, microcomputer, microprocessor (CPU). Simple microprocessor and simple microcomputer can not work independently, only the microcomputer system is a complete information processing system, has practical significance.
A complete microcomputer system includes two parts: hardware system and software system. The hardware system is composed of an arithmetic device, a controller, a memory (including memory, external memory and cache) and various input and output devices.
Software system can be divided into system software and application software. System software refers to the software that manages, monitors, and maintains computer resources, including hardware and software. It mainly includes: operating system, various language processing programs, database management systems and various tools and software. The operating system is the core of the system software, and users can complete various operations on the computer only through the operating system. Application software is a computer program prepared for a certain application purpose, such as word processing software, graphics and image processing software, network communication software, financial management software, CAD software, various programs and so on
Microcomputer can be referred to as \"microcomputer\
The abbreviation of microcomputer is \"microcomputer\
In addition, some powerful microcomputers will be called \"minicomputers\