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看到了一个新闻（http://www.rfid-weblog.com/50226711/the_rfid_coffee_mug_keep_your_hands_off_your_wallet.php）， 有个college student（Chris Hallberg）做了个带RFID的咖啡杯，这样每次打咖啡的时候就不用琐碎的付款了，那个embeded的RFID芯片直接记录了。这个idea已经被卖给了著名的咖啡连锁Stone Creek Coffee。后者生产一批装备有5-15块钱的咖啡杯，销售给喜爱他们咖啡的消费者们。
很看好这个idea哦！
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Source http://www.ece.arizona.edu/~ece462/Lec03-pipe/
RISC Pipelines
A RISC processor pipeline operates in much the same way, although the stages in the pipeline are different. While different processors have different numbers of steps, they are basically variations of these five, used in the MIPS R3000 processor:
- fetch instructions from memory
- read registers and decode the instruction
- execute the instruction or calculate an address
- access an operand in data memory
- write the result into a register
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