00463nam a2200169Ia 4500003000900000008004100009020001800050040001600068080001500084100002300099245007300122260002900195300001400224650001400238650001900252700002200271IN-BaIIA211028s9999    xx            000 0 eng d  a0-07-027953-5  cIIA Library  a681.3bHEL  aHellerman, Herbert 0aComputer system performancecHerbert Hellerman and Thomas F. Conroy.  aTokyobMcGraw-Hillc1975  axi, 380p.  aComputers  aNASA Thesaurus  aConroy, Thomas F.