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|}} | equity = | owner = | num_employees = 20,000 (2015) | subsid = | homepage = | footnotes = | intl = yes }} Unisys Corporation is an American global information technology company based in Blue Bell, Pennsylvania, that provides a portfolio of IT services, software, and technology. ==History== Unisys traces its roots back to the founding of American Arithmometer Company (later Burroughs Corporation) in 1886 and the Sperry Gyroscope Company in 1910. Unisys predecessor companies also include the Eckert–Mauchly Computer Corporation, which developed the world's first commercial digital computers, the BINAC, and the UNIVAC. In September 1986 Unisys was formed through the merger of the mainframe corporations Sperry and Burroughs, with Burroughs buying Sperry for $4.8 billion. The name was chosen from over 31,000 submissions in an internal competition when Chuck Ayoub submitted the word "Unisys" which was composed of parts of the words united, information and systems. The merger was the largest in the computer industry at the time and made Unisys the second largest computer company with annual revenue of $10.5 billion. At the time of the merger, Unisys had approximately 120,000 employees. Michael Blumenthal became CEO and Chairman after the merger and resigned in 1990 after several years of losses. James Unruh, (formerly Memorex and Honeywell) became the new CEO and Chairman after Blumenthal's departure and continued in that role until 1997, when Larry Weinbach of Arthur Anderson became the new CEO. By 1997, layoffs had reduced world-wide employee count to approximately 30,000. In addition to hardware, both Burroughs and Sperry had a history of working on U.S. government contracts. Unisys continues to provide hardware, software, and services to various government agencies. Soon after the merger, the market for proprietary mainframe-class systems—the mainstream product of Unisys and its competitors such as IBM—began a long-term decline that continues, at a lesser rate, today. In response, Unisys made the strategic decision to shift into high-end servers (e.g., 32 processor Windows Servers), as well as information technology (IT) services such as systems integration, outsourcing, and related technical services, while holding onto the profitable revenue stream from maintaining its installed base of proprietary mainframe hardware and applications.〔(【引用サイトリンク】url=http://www.computermuseum.li/Testpage/UNISYS-History.htm )〕 Important events in the company's history include the development of the 2200 series in 1986, including the UNISYS 2200/500 CMOS mainframe, and the Micro A in 1989, the first〔(【引用サイトリンク】url=http://www.fundinguniverse.com/company-histories/Unisys-Corporation-Company-History.html )〕 desktop mainframe, the UNISYS ES7000 servers in 2000, and the Unisys blueprinting method of visualizing business rules and workflow in 2004. In 1988 the company acquired Convergent Technologies, makers of CTOS.〔(【引用サイトリンク】url=http://www.computinghistory.org.uk/det/8242/Convergent-Technologies/ )〕 Joseph McGrath served as CEO and President from January, 2005, until September, 2008; he was never named Chairman of the Board. On October 7, 2008, J. Edward Coleman replaced J. McGrath as CEO and was named Chairman of the board as well.〔(【引用サイトリンク】url=http://www.unisys.com/unisys/news/detail.jsp?id=6300004 )〕 On November 10, 2008, the company was removed from the S&P 500 index as the market capitalization of the company had fallen below the S&P 500 minimum of $4 billion. On October 6, 2014, Unisys announced that Coleman will be leaving the company effective December 1, 2014. Unisys officially announced, Peter Altabef is named new Unisys president, CEO as from January 1, 2015 in replacement of Ed Coleman. Paul Weaver who was formerly Lead Independent Director was named Chairman 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Unisys」の詳細全文を読む スポンサード リンク
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