Enhancing SIM Card Technology: Developing an Advanced Operating System

The emergence of smart cards is a significant achievement in the field of information technology. They are growing in importance as they offer secure data storage and authentication, improve security, simplify processes, reduce costs, and have a variety of applications. In particu- lar, nowadays SIM cards play a vital role in the Telecom industry as an important type of smart card that allows a user to  make calls, send messages, store details such as phone number and network authentication  information, and provide various mobile data services.