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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 ...
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Why is one corner of the SIM card cut? Half of the country's population does not know the engineering behind it.

SIM Card: The SIM card is an important part of the mobile. Without it, you cannot use your phone. You may have noticed that there is a slight cut on one edge of the SIM card. Have you ever wondered ...