TY - BOOK AU - Williams,Brian K. AU - Sawyer,Stacey C. AU - Clifford,Sarah Hutchinson TI - Using information technology: a practical introduction to computers & communications SN - 0256261466 (pbk. : alk. paper) AV - QA76.5 .W67 1999 U1 - 004 21 PY - 1999/// CY - Boston PB - Irwin/McGraw-Hill KW - Computers KW - Telecommunication systems KW - Information technology N1 - Includes bibliographical references (p. 595-601) and index ER -