A Subscriber Identity Module (SIM) card is a chip inside most modern cellular phones that stores information your phone needs to communicate with your carrier’s cell towers. SIM cards come in different sizes and if you were to remove the SIM card from your phone you wouldn’t be able to text, call, or access anything on the internet.
from How-To Geek https://ift.tt/2LNVBNL
Friday, 1 June 2018
What Is A SIM Card (And What Comes Next)?
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