Go To Bar Code Scanners
Bar code scanners are electro-optical systems that include a means of illuminating the symbol and measuring reflected light. The light waveform data is converted from analog to digital, in order to be processed by a decoder (which is either built into the scanner, or a separate plug-in device), and then transmitted to the computer-based application software.
Scanners are either handheld or fixed-mount. Handheld scanners are used to read bar codes on stationary items. With fixed-mount scanners, items having a bar code are passed by the scanner - by hand as in retail scanning applications, or by conveyor belt in many industrial applications.
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