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前言我所研制的微型计算机,除了主机管理程序所管理的数码显示,键盘输入和音频盒式磁带机而外,我们另外配备了五种外部设备:电传电打机、字符显示器、宽行打印机、光电输入和穿孔输出机。而这些外部设备的控制都是以微处理机用户程序而出现的。对于外部设备的键盘输入在各种程序设计中有不同的选择和要求,所以在目前我只把打字机、宽打作硬拷贝,字符显示器作临时拷贝使用,而键盘输入管理在汇编程序、
Introduction Microcomputer I developed, in addition to the digital display managed by the host management program, keyboard input and audio cassette tape player, we are equipped with five additional external devices: teletype machine, character display, wide line printer , Optical input and punch output machine. The control of these external devices is based on the microprocessor user program. For external device keyboard input in a variety of programming have different choices and requirements, so at the moment I only typewriter, wide as a hard copy, character display for temporary copy use, and keyboard input management in the assembly process,