+A **barcode** is a visual pattern of parallel lines and spaces, encoding data in a machine-readable format. These simple symbols facilitate rapid [Product](/wiki/product) identification and [Tracking](/wiki/tracking), bridging physical items with digital information.
+## See also
+- [QR Code](/wiki/qr_code)
+- [Data Matrix](/wiki/data_matrix)
+- [POS System](/wiki/pos_system)
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