
Each and everyone of us use a SIM card today. Not only one, may be many.What was once an expensive chip to acquire back in the early days of mobile telephony has become a very cheap plastic card that is available even for free if the mobile operators are desperate to add new connections. Yesterday Apple announced the iPad which works over Wi-Fi and 3G / GSM networks with microSIM cards. If you thought that the MicroSIM or 3FF Sim Card is a new invention , you might be wrong . The introduction of these cards dates back to 2003.
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