Hand held bar code scanners are used typically as inventory or point of sale (POS) devices.

Fixed mount bar code scanners are designed to manually or mechanically read items passed by their scan windows.

Bar code scanners are designed to read imprinted bar / matrix code symbologies.

Bar code decoders use a receiver mechanism to read a barcode and then convert the code into usable data

Optical character recognition (OCR) products are used to read text from paper and translate it into data that can be manipulated by computers.

PCMCIA serial adapter cards provide one or more serial ports for a host computer.

Metal rod and bar stock are metals and alloys in the form of round bars or rod, square bars, rectangular or flat bars, hexagons, and other bar stock shapes