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IBM

International Business Machines Corporation, abbreviated IBM and nicknamed "Big Blue" (for its official corporate color), is a multinational computer technology and consulting corporation headquartered in Armonk, New York, United States. The company is one of the few information technology companies with a continuous history dating back to the 19th century. IBM manufactures and sells computer hardware and software, and offers infrastructure services, hosting services, and consulting services in areas ranging from mainframe computers to nanotechnology.

IBM acquired the Lotus Development Corporation in 1995, the Tivoli Systems in 1996 and Rational in 2003.