In the early 1980s, personal computers (PCs) became very popular. They were less expensive and had more processing power than the dumb terminal counterparts.
Two kinds of usual methods to measure the parameter of fragment velocity were introduced, and implementation of terminal effect research with digital image processing technology is studied.
介绍了两种常用的测量破片速度参数的方法，研究了数字图像处理技术在终点效应研究中的实现方法。
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For example, a function key might be programmed for use as a help key when a terminal is used for word processing.