摘要
本文在简介了包括最新使用的各种打印口后，给出了各种主要编程语言进行打印端口的直接 Ｉ／Ｏ访问的接口程序，可以满足非打印情况下的各种检测、控制等的使用。这里对端口的操作速度也进行了分析，有利于读者对端口的选择。
After a survey on computer's parallel ports including newly developed ones, interface programs written in typical languages for direct I/O access are given here. It can be directly adopted in detection or control system. Farther analyses on access speed of the parallel port may help readers in their programming and designs.
出处
《微计算机信息》
2000年第4期60-63,共4页
Control & Automation
关键词
编程语言
程序设计
打印口
I/O
I/O
programming
printing
port parallel port
SPP
EPP
ECP
