What is a Bar Code reader or Bar Code scanner?
Computers can’t read bar codes. For a computer to make use of the information contained in the bar code, the bar code data must be captured and decoded into a data format that the computer can process. The device that reads or captures the bar code information and sends it to the decoder is known as the bar code reader, generally called bar code scanner. How does bar code reader or bar code scanner works? A typical Bar Code Reader kit consists of Scanner, Decoder, and Cable that interfaces the Decoder to the computer. The Scanner scans the Bar Code symbol and captures the bars and spaces of the bar code and sends it to the decoder. The decoder translates the bars and spaces into corresponding electrical output and transmits that data to the computer in a traditional data format. A bar code scanner can either have the Decoder built it, or be “undecoded”. Undecoded bar code scanner requires a separate box called an interface or keyboard wedge. What types of Bar Code readers are available
