Other things have serial numbers as well, though, including banknotes and other similar documents.
Serial numbers are also sometimes, but not often, referred to asserial codes.
Serial Numbers Are Unique
It’s important to distinguish serial numbers from other identifying codes or numbers.
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In short, serial numbers are unique.
UPC Codes are common as well but are actually not unique like serial numbers.
Hardware Serial Numbers
You’ve probably seen serial numbers many times before.
Internal computer components likehard drives,optical drives, andmotherboardsalso feature serial numbers.
Serial numbers are used by hardware manufacturers to track individual items, usually for quality control.
