TY - BOOK AU - Williams,Brian K. AU - Sawyer,Stacey C. TI - Using information technology: a practical introduction to computers & communications : Complete version SN - 9780071221283 AV - QA76.5 W IL 2011 U1 - 004 22 PY - 2011/// CY - New York, NY PB - McGraw-Hill KW - Computers KW - Telecommunication systems KW - Information technology N1 - Includes bibliographical references and index ER -