What are the main function of sim card?

Question

What are the main function of sim card?

Answer 1

A SIM card or Subscriber Identity Module is a portable memory chip used in some models of cellular telephones. The SIM card makes it easy to switch to a new phone by simply sliding the SIM out of the old phone and into the new one. The SIM holds personal identity information, cell phone number, phone book, text messages and other data. It can be thought of as a mini hard disk that automatically activates the phone into which it is inserted

Answer 2

its only with a sim card you can operate a mobile otherwise it shows network not found.it is through this you can call your friends

Answer 3

Information is below.

Answer 4

to help the terrorists to make IED s ( indigenous explosive devices ) and to make our lives miserable.

Answer 5

The sim card is the connection between the phone and the network, without it your phone is absolutely useless. It's also used for storage of phone numbers/text messages, etc.

Answer 6

there is no function of a sim card... people are fooling you... don't fall into traps!!! lols...

sim card is the soul to your mobile phone...

Answer 7

It only gives u the number which is necessary for the conversations it allows us to be in one network. And their r some mobile phones which can be used after inserting sim in it