The punch card was a way to transmit computer readable information along with human readable information. The QR code is a modern equivalent. Consider the EE Series savings bond. If the punch holes are damaged the bond can be considered invalid. In 1998 card punch was abandoned https://twitter.com/BrianRoemmele/status/1175802549053485057 …pic.twitter.com/4QpzL8uHI3
9:11 AM - 22 Sep 2019
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