The Tiny Chip That Revolutionized How We Pay
Submitted by xthao2 on Nov. 13, 2025
Semiconductors are everywhere. From powering your phone to guiding satellites, they’ve reshaped daily life in ways that are easy to overlook. One of the simplest reminders sits in our wallets: that tiny gold square on many credit and debit cards. That little chip isn’t just decoration. It’s a semiconductor device — and it transformed how we pay for things.
