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UPC-A is a subset of EAN-13; in
reality, an UPC-A bar code is an
EAN-13 bar code with the first
EAN-13 number
digit set to "0". This means
that any hardware or software
capable of reading EAN-13 is
automatically capable of reading
UPC-A.
The reason why
UPC barcodes are used in supermarkets is that it can quickly,
accurately and conveniently identify product information, such
as price, inventory, sales volume, etc. The UPC-A barcode
consists of 12 digits, of which the first 6 digits represent the
manufacturer code, the last 5 digits represent the product code,
and the last digit is the check digit. In this way, as long as
we scan the barcode at the supermarket checkout counter, we can
quickly obtain the product price and inventory information,
which greatly improves the work efficiency of supermarket
salespeople.
The UPC barcode
is a barcode symbol used to track items in stores and is only
used in the United States and Canada. It consists of 12 digits
and each product has a unique code. It was formulated by the
United States Uniform Code Council in 1973, jointly developed
with IBM, and has been in use since 1974. It was the first
barcode system used in supermarket checkout, and the first item
marked with a UPC-A barcode was scanned at the checkout counter
at Troy’s Marsh Supermarket.
UPC-A barcodes can
be converted to EAN-13 barcodes by adding a leading 0. For
example, the UPC-A barcode 012345678905 corresponds to the
EAN-13 barcode 0012345678905. This will not only ensure
compatibility with UPC-A barcodes, but also enable your barcodes
to cope with international exchanges.
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