RFID refers to the technologies which refer to automatic identification and data capture (AIDC). AIDC method is useful to automatically detect objects, collect data and feed these data directly into the computer without any human intervention. Radio waves are used in this technology for performing this. Then the waves are converted by the reader to the more usable format of the data.
The information that was taken from the tags is moved to a host computer via a communication interface. If you want to know more about the subject, it is required to search for RFID chip timing Springfield Missouri on the Internet.