What are RF ID and ubiquitous????
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>1) RF-ID(Radio Frequency IDentification)
This means a little chip that goes into things, and which can receive
and transmit radio signals, as well as doing calculations. So a device
in a doorway can send a signal to it, for example, and it can answer
back "I am chip number 23", and a cash register hearing this can then
add the price of a bag of potato chips to your bill.
>2) ubiquious
That should be "ubiquitous". That means something is everywhere if it is
ubiquitous. You find it everywhere you look, it is used for all sorts of
things.