Punch code refers to a special type of code that, when typed through a keyboard, results in a written word or sentence, similar to a predetermined mechanical code. Machines or robots can easily understand this code and it is made for them only.
Punch code is a special type of code to be typed with a normal keyboard, which is developed as a mechanical code by a predetermined process.
This type of punch code is made to understand any machine etc. Through this punch code, they get a special command. That particular command is in the context of an indication of a particular task. Such a code is called a punch code.
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