英语词汇“key punching”的翻译、意思、用法、释义-英汉经管词典

单词	key punching
释义	key punching Definition Entering data into a computer by using a keyboard or keypad. In the era before the PCs, key punching referred to actual punching of holes in cards (called punch cards) or paper tape to issue commands or store data in a mini or mainframe computer.
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