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REVISION CARDS - BARCODES
V. Ryan © 2013
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|VIDEO ABOUT BARCODES|
WHAT IS A BARCODE?
A barcode is a number of vertical black strips, usually forming a rectangular shape (see example below). The strips are a graphical method of representing numbers. Computer system can read barcodes more efficiently than optically reading numbers and letters. Modern optical readers and their computer systems can read barcodes from almost every angle.
Barcodes are used to control the manufacturing process on the production line. Computer systems use barcode technology to keep track of products as they are manufactured and progress down the production line.
They play an important role in distribution and transport of products to the customer. Barcodes are used to track the progress of products as they are distributed to customers.
In shops and supermarkets, the barcodes on the packaging of products, are used by computer systems to monitor sales and the order further supplies.
|What is a Barcode? 2 marks|
|How is a Barcode used? 6 marks|
|DISTRIBUTION AND TRANSPORT:|
|SHOPS AND SUPERMARKETS:|
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