So far in the series of articles we have seen how to create a mapreduce program without writing explicit mapper or reducer also in the second part we wrote the wordcount with our own custom mapper and reducer In this article we will have a look at the modification to our previous program wordcount with our own…
This device can do almost anything involving almost any kind of low-(~125 kHz) or high-(~13.56 MHz) frequency RFID tag. It can act as a reader. It can eavesdrop on a transaction between another reader and a tag. It can analyze the signal received over the air more closely, for example to perform an attack in which we derive information from the tag's instantaneous power consumption. It can pretend to be a tag itself. It is also capable of some less obviously useful operations that might come in handy for development work.