How to access a SIM card programmatically?

Question

Just any old GSM compatible SIM card (bonus for 3G USIM).

I presume I need some hardware? Can anyone recommend something cheap for hobbyist, and something more professio

Answer 1

You can use simLAB tool for reading and editing almost any SIM file. It works with every PC/SC smartcard reader. The tool also allows you to backup SIM file system.

Have a look at https://github.com/kamwar/simLAB