Updating bios with flash drive

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Some devices combine the functionality of a portable media player with USB flash storage; they require a battery only when used to play music on the go.

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It was announced in late 2008, but consumer devices were not available until the beginning of 2010.USB 3.0 expansion cards are also available to upgrade older systems.As of March 2015 Flash drives with a USB-C interface and other not so common interfaces (such as Fire Wire 400, Fire Wire 800, and Thunder Bolt) are also available.Drives typically use the USB mass storage device class to communicate with the host.A Kingston card reader which accepts Micro SD memory cards (Transcend card shown partially inserted), and acts as a USB flash drive; resulting size is approximately 2 cm in length, 1 cm in width, and 2 mm in thickness.Altering the contents of a particular memory location involved copying the entire field into an off-chip buffer memory, erasing the field, modifying the data as required in the buffer, and re-writing it into the same field.

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