General correspondence documents major projects and contracts. These files describe work on the magnetic storage drum and the ERA 1101 and 1103 computer systems. The records document ERA's contracts with the Bureau of Ships, Atomic Energy Commission, the National Bureau of Standards, and the Massachusetts Institute of Technology. There are also files on competitive systems (mostly IBM), sales and marketing records, contracts and correspondence - documenting efforts to market the UNIVAC I and II. Software development files include correspondence of Admiral Grace Hopper.