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Most people are handed over papers at work to process information rather than soft copy making them less productive. Most people would find it much too difficult to deal with data in hard paper format. Consider the disadvantage you would be in if you had to work somewhere without access to the modern world's wonderful information technology facilities. However, if only you had access to a portable scanner and a computer you would be able to work from practically anywhere. Portable scanner is simply a device that you can't live without if you deal with large amounts of data on a regular basis.