EMC Corporation (EMC) is an American Fortune 500 and S&P; 500 manufacturer of software and systems for information management and storage. It is headquartered in Hopkinton, Massachusetts, USA. EMC produces a range of enterprise storage products, including hardware disk arrays and storage management software. Its flagship product, the Symmetrix, is the foundation of storage networks in many large data centers. The CLARiiON line was acquired by EMC when they acquired Data General.