1.Baudrare and the speed of Byte.
2. Linux FS and Flash store.
3. SW‘s Coupling.
4. Protocol and Program.
5. The use of bit.
6.Mifare Card and Credit or Interc Visa Master etc.
Payment and Laundry.
FAQ
原文：http://www.cnblogs.com/shuk-notes/p/5041378.html
