SIM cards have become a universal aspect of modern smartphone usage, but the technology and meaning behind the name dates more than three decades.

These two ways of connecting your phone to a cellular network are very different. We tell you about each and how you can switch from one to another.

The details of the project are concentrated on building a SIM reader that will be used for investigation and experimentation of Smart or SIM cards. The device is useful when backing-up/restoring ...