This article describesthe features of the three mainparts of MAP-the control unit ACU, the processingunit APU and the input/output unit AIO-and microprogramming technique isadopted.

• 文中阐述了MAP的三个组成部分(控制部件ACU、处理部件APU和I/O部件AIO)的结构及其设计特点；并探讨了内部的微程序控制方式.