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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.
This article provides a method of communication between a small computer and a microcomputer, which is used to communicate with an IBM-PC computer using a VAX computer and the result proves to be viable.Using a VAX computer as a host computer, the IBM-PC computer can not only emulate the VT100 Compatible with Chinese and English terminals, and through the modem as a remote terminal. VAX computer and IBM-PC computers in various types of files can be sent to each other in the communication process, the transmitted data is cyclically verified and formatted block transfer (a Block 90 bytes.) Send and receive procedures to ensure one-to-one correspondence between the error-free and smooth data transmission.When IBM-PC is used as a VT100 terminal, the most important thing is to VAX computer escape series to explain And give execution.In addition, the development of a mature Chinese character system on the IBM-PC can be introduced into the VAX system for processing.