00726nam a2200193Ia 4500003000600000005001700006008004100023020001700064040002500081082003500106100006400141245014800205260005000353300002600403500003200429650001400461650003000475650002700505NORSU20240301010953.0240215s9999    xx            000 0 und d  a0-256-209804  aNORSU-DumcNORSU-Dum  a004 a9 1997 C22Second edition  aSawyer, Stacy C., Williams, Brian K. & Hutchinson, Sarah E. 0aUsing Information TechnologybA Practical Introduction to Computers & CommunicationscStacy C. Sawyer, Brian K. Williams & Sarah E.  Hutchinson  bThe McGraw-Hill Companies, Inc.c1997aBoston  axxx, 330 pages, 28 cm  aIncludes summary and index   2Computers  aTelecommunication systems  aInformation technology