Chapter Two automatic Control 2.2 General Concept of automatic Control a. Automatic control technology and application Automatic control technology have applied in more and more areas. So called automatic control is that an objective(machine equipment, process) can automatically operating according some rules without interrupted by people In recent years, with the development and applications of computer automatic control technology has become more and more important in lot of fields, specially in space, missile, industry process control system etc2.2 General Concept of Automatic Control a. Automatic control technology and application Automatic control technology have applied in more and more areas. So called automatic control is that an objective (machine, equipment, process) can automatically operating according some rules without interrupted by people. In recent years, with the development and applications of computer, automatic control technology has become more and more important in lot of fields, specially in space, missile, industry process control system etc.. Chapter Two Automatic Control