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External memory is also known as secondary storage. As the name implies, it is a storage unit for your computer that is not internalized and has to be accessed through an input or output device such as a USB cord. External hard drives for your PC are usually used to store large amounts of information safely and securely. Such examples of information are office files, tax information, videos and sometimes even music. External hard drives vary in size and price depending on the manufacturer, so finding one to fit your budget should not take long.

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