00346nam a2200133Ia 4500008004100000041001200041082002000053100002000073245002500093250001300118260003500131300000800166650003800174231217s9999    xx            000 0 und d  aEnglish  a621.381952  FLO  aFloyd, Thomas L 0aDigital fundamentals  a3rd ed.   c1993bUniversal Book Publ. New  a660  aShift registers Counters Memories