Hitachi, Ltd. is a Japanese multinational conglomerate company headquartered in Chiyoda, Tokyo, Japan. It is the parent of the Hitachi Group and forms part of the DKB Group of companies. Hitachi is a highly diversified company that operates eleven business segments: Information & Telecommunication Systems, Social Infrastructure, High Functional Materials & Components, Financial Services, Power Systems, Electronic Systems & Equipment, Automotive Systems, Railway & Urban Systems, Digital Media & Consumer Products, Construction Machinery and Other Components & Systems.
Unisys Corporation is an American global information technology company based in Blue Bell, Pennsylvania, that provides a portfolio of IT services, software, and technology. Unisys has a long history in the technology industry. The company traces its roots back to the founding of American Arithmometer Company in 1886 and the Sperry Gyroscope Company in 1910. Unisys predecessor companies also include the EckertMauchly Computer Corporation, which developed the world's first commercial digital computers, the BINAC, and the UNIVAC.
