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为了提高计算机的效能和使用外部设备的方便,越来越多的计算机设置了交换器。我们学习了国内同类型的计算机、结合自己的任务、设计了277乙机交换器。它具有下述特点:一、使用方便的控制字二、结构简化、可容性强的排队器三、内容丰富、传输迅速的中断状态字四、独立、方便的自检及合调系统下面首先介绍277乙机交换器的概貌、然后着重讨论它的特点。
In order to improve the efficiency of the computer and the convenience of using external devices, more and more computers are equipped with switches. We have studied the same type of computer in the country, combined with their own tasks, designed a 277 B machine switch. It has the following characteristics: First, the use of convenient control word Second, the structure is simplified, strong capacitive queuing device Third, the content is rich, fast interrupt status word Four independent and convenient self-test and co-ordination system First Introduce the overview of 277 B machine switch, and then focus on its characteristics.