基于汇编语言的接口技术，实现的功能：甲、乙两台微机由符合RS—232—C标准的串口线相连。编程实现（使用C语言或汇编语言均可）甲、乙两微机的交互式串行通讯。例如：甲机向乙机发送信息，乙机收到信息后判断：若是‘0~9’，求其平方值，再送回甲机，并在甲机上显示；若收到的是字母、字符则在乙机上显示出来。或：甲、乙两微机通过串行接口的信息传输进行对话应答等-Based on assembly language interface technology, functions: A, B two computer by the line RS-232-C standard serial cable connected. Programming (using C language or assembly language can be) A, B two interactive computer serial communications. For example: A machine sends information to B, B machine determine the receipt of information: if ' 0 to 9 ' , find its square, and then back to a machine and a machine on the display　if the letter is received, the character is displayed on the B machine. Or: A, B and two computer transmission of information via the serial interface of a dialogue response, etc.