Explain barcode reader
Understand the Problem
The question is asking for an explanation of what a barcode reader is and how it works. This involves describing its function, components, and the general process it uses to decode barcodes.
Answer
A barcode reader uses light to scan and decode barcodes, sending the data to a computer.
A barcode reader scans barcodes using a light beam, measures the reflected light pattern, and converts it into electrical energy. This energy is then decoded into data and sent to a computer.
Answer for screen readers
A barcode reader scans barcodes using a light beam, measures the reflected light pattern, and converts it into electrical energy. This energy is then decoded into data and sent to a computer.
More Information
Barcode readers are also known as barcode scanners. They come in various forms, including handheld scanners and fixed-position scanners. Some advanced readers use image-based technology to read damaged or incomplete barcodes.
Tips
A common mistake is thinking the reader directly interprets the image. It actually measures reflected light and converts it to electrical signals.
Sources
- What is a Barcode Reader? - GeeksforGeeks - geeksforgeeks.org
- What is a Barcode Scaner and How Does it Work? - waspbarcode.com
- How Does a Barcode Reader Work? - Epos Now - eposnow.com
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