Answer
What a SIM card really is
Subscriber Identity Module card is is a portable memory chip used in some models of cellular telephones.
The SIM card is a tiny, rectangular card found in all GSM cell phones that acts as an ID card for your handset. The SIM card stores your phone number and is needed to activate a mobile for use.
What if I take the SIM card out of my cell? - If the card is taken out of the handset, it stops working, and it is no longer associated with your phone number.
Can I switch my SIM card to another phone ? - As long as both phones are for the same carrier. Yes you can switch your phone number from one mobile to another simply by swapping out your SIM card.
How much storage a SIM card has ? - A SIM cards can store up to 250 contacts.
Where is the SIM card located ? - Usually is located behind the battery.
Note: - if your handset is unlocked (meaning it's not locked to one carrier only) you can buy prepaid SIM cards when traveling so that your mobile will always have a local number for your destination.
Don,t loos it - your Sim card it's very valuable. Your Sim card is basically your memory card, like the ones you use to save your game on video games. It stores all the information on your phone, like pictures, videos, contacts.
