What is a SIM card and what does it do?
July 27th 2007 08:40
Signature Tune
SIM stands for Subscriber Identity Module. It is a portable computer chip which can be used on some cell phones and digital cameras.
It slides in and out of a small slot so can be transferred from one device to the other but its use by you on someone else's equipment will not be charged to them but to you.
The SIM holds personal identity information, cell phone number, phone book, text messages and other data, virtually a mini hard disc which activates the device into which it is inserted.
So if one card runs out someone else's card can be used to activate and run the device, which at times can be quite handy.
International travellers can take their phone and buy a local SIM card overseas which allows local call charges rather than international ones.
SIM cards are used with a GSM network [Global System for Mobile Communication].
You can buy digital cameras with prepaid SIM cards so look out for a good deal.
Do you have any questions? Did you find this useful? Is there anything you'd like to add to assist others? We'd be happy to hear from you.
| 45 |
| Vote |
Add To: 
subscribe to this blog
