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Elliot Zeff 12E3 AS Computing Homework - Research 2 1 (a). A bar code is a series of lines which differ in thickness and space in between each other which contain data to provide certain information on the product such as the Manufacturer, Product Description, and the Size. The purpose of the bar code is to simplify the amount of data which the staff needs to know and recognise by memory as all of the data is stored of the company computer. (b). Information that is contained in the bar code contains are the unique ID number which is the code number. (c). Information that is not contained in the bar code would be, in most cases, the price as all different shops which stock the product might need to charge different amounts. Also would be the manufacturers name, the product description, and the size and in some cases also the price as these would...

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