Philip Black

PHILIP BLACK has been Chief Executive Officer and a Director of Box Hill
Systems Corp. (NYSE:BXH) since May 1995. From 1976 to 1991, Mr. Black
held a number of positions including Vice President, President, Chief
Executive Officer and Vice Chairman of the Board at Tekelec, Inc., a
publicly traded company, of which he was the founder, engaged in the
design, manufacturing and marketing of diagnostics systems and network
switching solutions. From March 1990 until August 1991, Mr. Black served
as Managing Director of Echelon Europe, of which he was a co-founder. In
September 1991 Mr. Black became the Chief Executive Officer and
Treasurer of Avalon Control Technologies, a company specializing in
products and services related to Echelon’s LONWorks technology, and
served in those capacities until June 1994. In April 1994 Mr. Black
became President and Chief Executive Officer of Chevry, a backup
software company, and served in those capacities until he joined Box
Hill Systems Corp.