TY - BOOK AU - Williams,Brian K. AU - Sawyer,Stacey C. TI - Using information technology: a practical introduction to computers & communications ; introductory version SN - 0072485558 AV - QA76.5 .S2193 2003 U1 - 004 22 PY - 2003/// CY - Boston PB - McGraw-Hill/Irwin KW - Computers KW - Telecommunication systems KW - Information technology N1 - Includes bibliographical references and index; CSE, EEE, ETE ER -