Automatic Identification & Data Capture refers to the methods of automatically identifying objects, collecting data about them, and entering that data directly into computer systems (i.e. without human involvement). Technologies typically considered as part of AIDC include bar codes, Radio Frequency Identification (RFID), biometrics, magnetic stripes, Optical Character Recognition (OCR), smart cards, and voice recognition.Bar code technology comprises of the following components:
- Symbolizes that encode data that can be optically read by bar code readers.
- Printing technologies that produce machine-readable symbols.
- Scanners and decoders that capture visual images of the symbolizes and convert them to computer-compatible digital data, and the verifiers that validate symbol quality.
There are many different bar code symbolizes, or languages. Each symbolize has its own rules for character (e.g. letter, number, punctuation) encoding, printing and decoding requirements, error checking, and other features.