What Does Punch Card Mean?
A punch card is a simple piece of paper stock that can hold data in the form of small punched holes, which are strategically positioned to be read by computers or machines. It is an early computer programming relic that was used before the many data storage advances relied upon today.
Techopedia Explains Punch Card
In the earliest, most primitive computing setups, punch cards were fed into large computers that held very little memory or data. These large computers were sometimes called big iron machines. One example of the use of punch card technology is in the renowned Turing machine invented by Alan Turing, a leader at the time in the information technology movement.
