We can now buy postage online, instead of using stamps, but how do two dimensional barcodes work? And what's to stop you photocopying them? No queuing at the Post Office for a stamp, it's a dream come ...
Daniel Liberto is a journalist with over 10 years of experience working with publications such as the Financial Times, The Independent, and Investors Chronicle. A barcode is an image consisting of a ...
A barcode is a machine-readable representation of data in a visual format. It consists of parallel lines of varying widths and spacing. Tap to read what is barcode know how it works.
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