sentences:  His textbook, Contemporary Logic Design, has sold over 85,000 copies, and has been used at over 200 colleges and universities.He was awarded the IEEE James H. Mulligan, Jr. Education Medal in 2010.Katz, along with David A. Patterson and Garth Gibson, developed the redundant array of inexpensive disks (RAID) concept for computer storage in their 1988 SIGMOD Conference paper.