How Does The Barcode Scanner Work?

How to read a barcode? Typically, a barcode scanner can scan and read barcodes with the help of a decoder and cable. 


The device will read the barcode on a box or product label and then transfer the information to the decoder. 


The decoder then interprets the barcode information and transmits it via cable to a connected computer system.


Some scanners are un-decoded while the decoder is built into the scanner itself. 


The latter kind of kit will include a separate interface device that collects data from the scanner and feeds it into the computer.


See more: https://youtu.be/dPVfRw2jNTk


There are two outputs available for barcode readers to connect to computers: RS232 or the keyboard wedge. 


Because it lets you change data before it enters the computer system, RS232 is the more complicated of the two. 


Any open serial port on a computer will allow RS232 to connect.


The keyboard wedge may connect to both a keyboard and a computer at once. 


Although a keyboard wedge has an easy-to-use interface and doesn't require any software, you can't change the barcode data before it is input into the device.


See more: https://barcodelive.org/type-of-barcode-scanner

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