小型机与微型机通讯技术及其实现方法

本文提供一种小型计算机与微型计算机的通讯技术方法.该技术被用于VAX计算机与IBM—PC计算机通讯,结果证明是可行的.把VAX计算机当作主机,IBM—PC计算机不但能仿真与VT100兼容的汉英文终端,并且通过调制解调器能作为远程终端.VAX计算机与IBM—PC计算机中的各类文件能互相传送.在通讯的过程中,传送的数据进行循环校验并以格式块传输(一个块90个字节).发送程序与接收程序一一对应以保证数据传输免错以及顺利进行.当IBM—PC用来作为VT100终端时,最重要的是要对VAX计算机的换码系列进行解释并给予执行.此外,在IBM—PC机上开发成熟的汉字系统能引入到VAX系统来处理.

TECHNIQUE AND METHOD OF COMMUNICATIONS BETWEEN MINICOMPUTER AND MICROCOMPUTER

This paper sets forth a method dealing with communications between minicomputer and microcomputer. The technique has been applied tocommunications between VAX-11/750 and IBM-PC and turned out to be feasible. The VAX computer functions as a host computer and IBM-PC simulates Chinese-English words not only as terminal compatible with VT100 but also as remote terminal by the modem0 The files can be transmitted between VAX and IBM-PC. During commumcations, data with cyclic checking are transmittes in format block ( 90 bytes per block ) . Transmitted program responds to received program to make data transmission successful and error-free. When IBM -PC is used as VT100 terminal, it is important that all the escape sequences of VT100 be translated and executed in IBM-PC system. Moreover, the developed Chinese character system in IBM-PC can also be introduced into VAX system.