Tech: Punch cards — cardboard cards with punched holes — were…

Question

Did you know? Punch cards — cardboard cards with punched holes — were the standard way to get data into computers until the 1980s. One card held 80 characters. Hollerith's punch card system was used in 1890 to count the US Census in 6 weeks instead of 7 years. His company later became IBM.

Accepted Answer

Punch cards — cardboard cards with punched holes — were the standard way to get data into computers until the 1980s. One card held 80 characters. Hollerith's punch card system was used in 1890 to count the US Census in 6 weeks instead of 7 years. His company later became IBM.

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