What is Sim Card !?????
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Explanation:
A SIM Card is a very small card, that is placed in our Mobile System. Each SIM Card has a specific Mobile Number, which helps the person to make calls and surf the Internet
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A SIM card is a customer card that lets your phone connect to the network. These towers allow us to make phone calls. Mobile phones allow us to do many other things too. Apart from making calls to people on our network, on other networks and in other countries, we can use phones to connect to the internet
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