RFID as wiki says:
Radio-frequency identification
(RFID ) is the use of a wireless non-
contact system that uses radio-
frequency electromagnetic fields to
transfer data from a tag attached to
an object, for the purposes of
automatic identification and
tracking. Some tags require no
battery and are powered by the
electromagnetic fields used to read
them. Others use a local power
source and emit radio waves
(electromagnetic radiation at radio
frequencies). The tag contains
electronically stored information
which can be read from up to
several meters (yards) away. Unlike
a bar code , the tag does not need
to be within line of sight of the
reader and may be embedded in
the tracked object.
whatever it is technically i don't give a damn about the thing . but the thing i'm concerned with its practical usage and benefits .
I think that this Rfid thing could be a huge success if it is used as attendance system in our college.
the bar code attendance system is too faulty and tedious as it is equivalent to the previous paper-pen attendance system.
The practical feasibility and usage is also very easy. the cost of a reader is around 600 -900 bucks and the tag could cost from 30-60bucks depending upon the distance coverage.so i suggest that we should support this t'logy to skip what we are doing from play school ie yes mam present mam .
