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由于微型计算机价值便宜、功能强,使用方便等优点,因此受到了用户的欢迎。近几年微型机在物化探工作中也得到了广泛应用。在物化探工作中应用微型计算机,主要用于进行数据处理,但由于数据量较大,在终端上用键盘输入数据不仅占用很多机器时间,而且很不方便。因此很多用户在微型计算机上配接了光电纸带输入机。微型计算机几乎都采用16进制ASCⅡ代码,这就要求输入的单位纸带按ASCⅡ码的编码穿孔。纸带上第1—4位为低位,第5—7位为高位,第8位为校验位(一般不要求校验
As the microcomputer is cheap, powerful, easy to use, etc., it has been welcomed by users. In recent years, micro-geophysical and geochemical exploration work has also been widely used. In the geophysical and geochemical exploration of the use of micro-computer, mainly for data processing, but due to the large amount of data, using the keyboard to enter data on the terminal not only take up a lot of machine time, and very inconvenient. Therefore, many users in the micro-computer equipped with a photoelectric paper tape input machine. Almost all micro-computer using ASC ASCII code, which requires the input unit tape by ASC Ⅱ code coding perforation. Paper tape on the 1-4th for the low, the first 5-7 high, the first eight check digit (generally do not require calibration