To provide computing power for the U.S. arsenal of advanced weaponry, satellites and information systems, the Pentagon has entered into a seven-year deal with Globalfoundries Inc, an Abu Dhabi-owned microchip manufacturer.

The move serves to diversify the Defense Department’s microchip supply chain — an issue of particular concern for some defense officials — which has been dominated by a short list of sellers led by IBM for over a decade.

A microchip is a small, wafer-thin semiconductor used to relay information through an electrical grid, thereby making an integrated circuit. Almost every modern digital device is chock-full of microchips.

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