The first subseries consists of reports and documents, some of them co-written by Sconzo, issued by the IBM Cambridge Space Systems Group. The second subseries consists of reports, summaries, and proposals published by the IMB Independent Research program, including material written by Sconzo. The third subseries consists of reports from Federal Systems division offices, primarily in the Washington, DC area, which Sconzo consulted or in which he had an interest. The final subseries consists of reports and documents from IBM offices throughout the United States and abroad; these demonstrate the large scope of Sconzo’s interests and his research involvement in many fields.