1 Some virulent bacteria produce special proteins that allow them to colonize parts of the host body. 2  Helicobacter pylori is able to survive in the acidic environment of the human stomach by producing the enzyme urease.
rfid-Computer Definition. (R adio F requency ID entification) A data collection technology that uses electronic tags for storing data. The tag, also known as an electronic label, transponder or code plate, is made up of an RFID chip attached to an antenna.
RFID was first used during World War II to identify aeroplanes (IFF: Identify Friendly Foe). The objective was to use the aeroplane's radar signal to read an identification number in order to identify whether they were allies or enemies. During the 1960-70s, RFID systems were still considered a secret technology used by the army to control access into sensitive areas (nuclear plants etc.).