Post-war the company expanded its interests in electronics and computing, producing the company's first digital computer (SPEEDAC) in 1953. In 1955 Sperry acquired Remington Rand and renamed itself Sperry Rand. Also acquiring Eckert-Mauchly Computer Corporation and Engineering Research Associates with Remington Rand the company developing the successful UNIVAC computer series and signing a valuable cross-licensing deal with IBM. The company remained a major military contractor. From 1967 to 1973 the corporation was involved in an acrimonious antitrust lawsuit with Honeywell, Inc. In 1978 Sperry Rand decided to concentrate on its computing interests and a number of divisions including Remington Rand Systems, Remington Rand Machines, Ford Instrument Company, Sperry Aerospace and Sperry Vickers were sold. The company dropped the Rand from its title and reverted back to Sperry Corporation.
In 1986, and after the success of a second hostile takeover bid engineered by Burroughs CEO and ex. US Treasurer Michael Bluementhal and approved by then President Ronald Reagan, Sperry merged with Burroughs Corporation to become Unisys. The takeover came about even after Sperry Corporations used a "poisoned pill" in the form of a major share price hike to dissuade the hostile takeover bid and as a result Burroughs had to borrow much more from the banks than was anticipated in order to complete its bid. Certain internal divisions of Sperry such as Sperry New Holland, Sperry Gyroscope, Sperry Vickers, Sperry Marine and Sperry Flight Systems were sold off after the merger.