Traditional barcodes are also known as one dimensional barcodes. There are several varieties, - including UPC and EAN in common use. Most look similar to this:
+Traditional barcodes, such as those printed on product packaging, are also known as one + dimensional barcodes. There are several types commonly used, including UPC and EAN. Most look + similar to this:
These 1D barcodes contain a unique code which typically describes a product, like a CD or a book. You can look this code up on the internet to find prices, reviews, and more.
If you scan a book, you can also search the contents of the book for a word or phrase, and find all the pages where it appears:
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