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Nickname for IBM's antiferromagnetically-coupled (AFC) media technology, which will reportedly increase the data capacity of a hard drive by four times over today's technology. Pixie dust consists of a three-atom thick magnetic coating composed of the element ruthenium sandwiched between two magnetic layers. The technology is expected to increase areal densities to over 100gb/in2.
A gigabit interface converter is a transceiver that converts electric currents to optical signals, and optical signals to digital electric currents. Typically employed in fiber optic and Ethernet systems as an interface for high-speed networking, the data transfer rate is one gigabit per second (1Gb/s) or higher.