These primitive control cards were the forerunners of modern job control languages and command interpreters. 这些原始控制卡就是现代任务控制语言与命令解释器的前身。
Instead of having a job defined by spooled card images, each program reads its next control card from the terminal, and output is normally printed immediately to the screen. 代替费了很大劲被缠绕在线轴上的卡影定义，每个程式读来自终端机的它的下个控制卡，而且输出通常立刻被印刷到萤幕。
