AT&T

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AT&T American Telephone and Telegraph Company. In 1991, AT&T merged with NCR to produce a company that is now number seven in terms of revenue in the list of the world's top IT suppliers (1993 figures). Its major revenues come from data communications, peripherals, maintenance, and services, but it is an important supplier of computers of all sizes, with a particular emphasis on UNIX-based machines, and of software. Following a merger with Teradata Corp., the company now has products in the area of massively parallel database machines.

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