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Friday, April 7, 2017

SIM (Subscriber Identity Module)




Properties
Uses
Advantages
Disadvantages
Used in Mobile phones to store phone numbers  and messages etc.
*Used for phone Calls
*Can be changed from phone to phone
*Easily Portable
*Reliable (safe inside the phone)
*Cannot be used for personal data like multimedia files
*Some cards are designed specific to a company only
*Stop functioning if not used for a specific period
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