Smart cards 種類

The HK Octopus Card is based on Sony's FeliCa (Felicity Card) RFID IC chip smart card system. The Octopus Card system is the first overseas application of FeliCa technology.
Similar smart card systems based on FeliCa are listed in this link:
http://en.wikipedia.org/wiki/FeliCa
Also:
http://zh.wikipedia.org/wiki/FeliCa
Smart card systems not based on FeliCa include UK's Oyster Card
http://en.wikipedia.org/wiki/Oyster_card
Oyster Card uses MIFARE technology.
http://en.wikipedia.org/wiki/MIFARE

2008-03-30 15:15:30 補充：
See also:
http://en.wikipedia.org/wiki/Octopus_card
http://zh.wikipedia.org/w/index.php?title=%E5%85%AB%E8%BE%BE%E9%80%9A&variant=zh-hk

m card. on china.
i go there yesterday