|Back to Feb. Ed Reporter|
|NUMBER 241||THE NEWSPAPER OF EDUCATION RIGHTS||FEBRUARY 2006|
|ID Card Technology|
Magnetic Strip, similar to a magnetic recording tape, contains machine-readable magnetic codes stored on the strip that can consist of multiple tracks for housing information. Magnetic strips are used on different types of cards and may be combined with other technologies.
Radio frequency identification (RFID) chips have "memory" and are equipped with a radio transceiver. RFID use allows an object or person to be identified at a distance with the use of radio waves.
Smart Cards can compute, exchange information with a card reader, and add or subtract data. The embedded computer chip (a microprocessor with internal memory or stand alone memory) has a large storage capacity. Fingerprint, voiceprint, signature, or retinal/iris/hand/face information can also be stored in a smart chip or two-dimensional bar code.
Proximity Cards are embedded with an internal metallic antenna that communicates with an external radio frequency (RF) antenna. These cards are often used for tracking and access.