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2. SIM card - Wikipedia

   en.wikipedia.org/wiki/SIM_card

   A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).

3. Android TV - Wikipedia

   en.wikipedia.org/wiki/Android_TV

   [12] [13] Google unveiled the first Android TV device, the Nexus Player developed by Asus, at a hardware event in October 2014. [14] The ADT-2 development kit device was released before the release of Android TV 9.0. [15] Android TV 10 was released on December 10, 2019, [16] together with the ADT-3 development kit. [17]

4. Universal integrated circuit card - Wikipedia

   en.wikipedia.org/wiki/Universal_integrated...

   A card with all 3 features is called a removable user identity card, or R-UIM. Thus, the R-UIM card can be inserted into CDMA, GSM, or UMTS handsets, and will work in all three cases. In 3G networks, it is a mistake to speak of a USIM, CSIM, or SIM card, as all three are applications running on a UICC card.

5. ISO/IEC 7810 - Wikipedia

   en.wikipedia.org/wiki/ISO/IEC_7810

   ID-000 size card as part of ID-1 size card [ edit ] An "informative" (i.e. non-mandatory) annex [ 7 ] describes how an ID-000 sized card may be included in an ID-1 size card for processing (e.g. in an ID-1 reader), but with "relief areas around the perimeter of the ID-000 size card to allow it to be removed from the ID-1 size card without ...

6. Dual SIM - Wikipedia

   en.wikipedia.org/wiki/Dual_SIM

   Some phone models utilize a "hybrid" SIM tray, which can hold either two SIM cards, or one SIM card and one MicroSD memory card. [31] [32] The Huawei Mate 20 range introduced a proprietary memory card format called Nano Memory, exactly the size and shape of a nano SIM card. [33] Some devices accept dual SIMs of different form factors.

7. GSM - Wikipedia

   en.wikipedia.org/wiki/GSM

   A nano sim used in mobile phones. One of the key features of GSM is the Subscriber Identity Module, commonly known as a SIM card. The SIM is a detachable smart card [2] containing a user's subscription information and phone book. This allows users to retain their information after switching handsets.