A perforation, as in a punched card or paper tape.

在穿孔卡片或纸带上穿孔的一种动作。

The user interface was largely in the form of punched card input and report output.

用户界面主要是穿孔卡片的形式输入和报告输出。

To read the punched cards into the computer requires a card reader instead of the tape reader.

要把穿孔卡写入计算机，就需用卡片输入机来取代纸带输入机。

A card on which binary coded data are recorded with recording density larger than a punched card.

一种二进制编码数据卡片，其记录密度大于穿孔卡片。

Bouchon and Falcon's punched card loom appeared in 1775, later improved on by Jacques DE Vaucanson.

1775年，布香(Bouchon)和福尔肯(Falcon)的穿孔卡织布机出现了。后来，雅卡尔•德•沃康桑(Jacques de Vaucanson)改善了这种织布机。