Telex has alleged in the complaint that IBM violated sections 1 and 2 of the Sherman Act, 15 U.S.C. §§ 1, 2, and section 2 of the Clayton Act, 15 U.S.C. § 13, in that IBM had monopolized and attempted to monopolize the manufacture, distribution, sale, and leasing of electronic data processing equipment. The complaint was later amended to charge IBM in more specific terms with monopolization in the manufacture, distribution, sale, and leasing of plug compatible peripheral products which are attached to IBM central processing units.