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Why is one corner of a SIM card cut off? It's not just a design feature; there's a surprising scientific reason behind it.

SIM Card: Have you ever looked closely at a SIM card? Almost every SIM card has a cut corner. Have you ever looked closely at a SIM card? Almost every SIM card has a cut corner. Surprisingly, whether ...
CCM

SIM card: what it is, how to remove, install, in an iPhone

What is a SIM card used for? A SIM card, or a subscriber identity module/subscriber identification module, is a tiny memory card that contains unique information and is linked to a particular network ...