概述电子数字计算的迅速发展,促使自动化工具发生根本性的变革。利用电子数字计算机代替调节器及计算单元,使生产过程综合自动化成为可能。能就目前的发展趋势来看,并不是用一台大型计算机统括全厂的自动化工作。因为集中程度太高,对计算机可 Overview The rapid development of electronic digital computing has led to fundamental changes in automation tools. The use of electronic digital computers instead of regulators and computing units makes it possible to automate the production process. To the current development trend, it is not to use a large computer to include the whole plant automation. Because the concentration is too high, the computer can be