Unisys Corp claims that its 2200 Series mainframes are out in front in Open Systems Interconnection conformance and interoperability, and that as of October 1, it accounted for 54 out of the 181 successful test entries listed in the OSINET Test and Registration database. The test results were evaluated by the government’s Joint Interoperability Test Center which certified the products for GOSIP conformance. Certified 2200 products are the X400 Message Handling System, OSI File Transfer, Access and Management, Transport and the Connectionless Network Protocol, and X25. Behind the 2200 came IBM Corp with 51 entries, Hewlett-Packard Co with 18, Control Data Systems Inc, 14, Data General Corp, 18, Compagnie des Machines Bull SA with 5, Digital Equipment Corp, 5, and others, 26.
