What you Mean by Sim ? Explain.
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Stands for "Subscriber Identification Module Card." A SIM card is a small removable chip that identifies a mobile device on a cellular network.
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A subscriber identity module or subscriber identification module (SIM), widely known as a SIM card, is an integrated circuit that is intended to securely store the international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephony ...
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