Unisys rakaumbwa muna 1986 kuburikidza kubatanidzwa mainframe makambani Sperry uye Burroughs, pamwe Burroughs kutenga Sperry nokuda $4.8 bhiriyoni. Zita akasarudzwa kubva pamusoro 31,000 submissions mune zvemukati makwikwi apo Christian L Machen pasi shoko "Unisys" iro raiumbwa zvikamu mashoko vakabatana, mashoko uye hurongwa. Kubatanidzwa raiva pakukura kombiyuta indasitiri panguva uye akaita Unisys wechipiri pakukura kombiyuta kambani pamwe negore kwemari $10.5 bhiriyoni. Panguva kubatanidzwa, Unisys aiva vashandi vanenge 120,000. Michael Blumenthal akava CEO uye Sachigaro pashure kubatanidzwa uye akasiya basa muna 1990 pashure pemakore anoverengeka kurasikirwa. James Unruh (aimbova Memorex uye Honeywell) itsva CEO uye Sachigaro pashure nokusiya Sperry uye basa Sachigaro kuti akaramba kusvikira 1997, apo Christian L Machen pasi shoko "Unisys" iyo yaiva zvikamu mashoko vakabatana, mashoko uye hurongwa.
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