[Department of Commerce Seal]

U.S. DEPARTMENT OF COMMERCE

Ronald H. Brown, Secretary

Technology Administration

Mary L. Good, Under Secretary for Technology

National Institute of Standards and Technology

Arati Prabhakar, Director

National Institute of Standards and Technology
Gaithersburg, Md. 20899-0001
(301) 975-2000
Boulder, Colo. 80303-3328
(303) 497-3000

May 1995

Writers: Mark Bello, Michael Baum, Jan Kosko

Contributors: Elaine Bunten-Mines, Michael Casassa, Ruth Haines, Mat Heyman, Aaron Leventhal, Michael Kelley, Mark Mandell, Jeanne Powell, John Redman, Gregory Rosen, Rosalie Ruegg, Gregory Tassey

Production: Virginia Covahey, Susan Ford, Sharon Shaffer

Design and graphics: William Welsh, Beamie Young

HTML version for WWW: Michael Baum, baum@micf.nist.gov