eli5 How did Credit/Debit Cards work before Chip & Pin Machines?

Question

eli5 How did Credit/Debit Cards work before Chip & Pin Machines?

In: 64

Answer 1

Cards don’t go too far back. During my 38 years of living there were always swipe machines. Before then, they’d have to write all info on a paper but that didn’t last long.

Answer 2

Cards don’t go too far back. During my 38 years of living there were always swipe machines. Before then, they’d have to write all info on a paper but that didn’t last long.