A large portion of the collection consists of plaintiff exhibits for the suit U.S. v. IBM and includes records generated by IBM and its executives including internal memos, speeches, executive office correspondence, appointment diaries of Cuthbert C. Hurd (former IBM director of applied sciences in the early 1950s and later consultant to IBM), product announcements, and 10-K financial forms. There are also IBM handbooks and manuals on principles of time sharing, basic principles of COMSTAT, and an IBM Lease/Purchase Guide. The studies and reports cover such subjects as selective pricing, market share and environment, System/360, unbundling, and rental and purchase policies. Some reports analyze IBM's competitors in the computer industry. Other plaintiff exhibits include computer industry reports and studies by companies such as International Data Corporation, Arthur D. Little, Inc., and the Diebold Group; and records generated by IBM's competitors. The exhibits are not a complete set.