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前言近几年来,国外电子计算机已广泛深入地应用到各个领域:工业生产过程的控制和管理、商业贸易、学校教育、科学研究、空间技术、军事技术、医疗卫生、政府机关、交通运输、工程计算、实验室自动化、设计最优化和自动化以及环境污染的监督等。截止到1970年初的不完全统计全世界约有111,600台电子计算机投入运行(参见表1)。而且在应用方面开始组成计算机网,实现机——机通讯,利用时分处理的功能使得不同
Preface In recent years, foreign electronic computers have been widely applied to various fields: control and management of industrial production process, commerce and trade, school education, scientific research, space technology, military technology, health care, government agencies, transportation, engineering Calculation, laboratory automation, design optimization and automation, as well as supervision of environmental pollution. Incomplete statistics as of early 1970 Approximately 111,600 computers are in operation worldwide (see Table 1). And in the application began to form a computer network, to achieve machine - machine communication, the use of time-sharing features make different