Biographical Sketch: Thomas B. Mathias, IBM Systems and Technology Group, 1701 North Street, Endicott, New York, 13760 (mathiast@us.ibm.com). Mr. Mathias is a Senior Engineer in the IBM Systems Group. He received a B.S. Degree in Electrical Engineering from the Ohio State University and joined IBM in Endicott, New York, in 1984. He has worked in System z hardware development and later in firmware development. Mr. Mathias was licensed as a Professional Engineer in the state of New York in 1992. He is co-inventor on a number of U.S. patents.