What is the difference between NFC (ISO 18092) and Contactless Card / RFID (ISO 14443)?

How to communicate with smartcard / secure element physically connected to Android device over USB? Thanks!

How to programmatically access PC/SC compliant smartcard reader from Android App? The smartcard reader is physically connected to Android device through the USB port. Thanks!

Is there a list of a well known smart cart AID's (Applet ID's)? APDU ISO/IEC 7816-4 Application Identifiers?

Looking for a smardSD card vendor in the microSD form factor. The card needs to be running JavaCard and we should be able to place our custom applets on the card

What is the most popular Smart Card OS / development stack? We are looking into selecting a Smart Card platform for our custom application security project development. Just to be clear, we are looking into more advanced cards, i.e. Dynamic Application Card OS'es, and not Fixed File Structure Cards. It looks like 2 of the most popular Dynamic Application Card OS'es are: JavaCard MULTOS Which one of these is more popular? Has better develo