TY - BOOK AU - Sawyer,Stacey C. AU - Williams,Brian K. AU - Clifford,Sarah Hutchinson TI - Using information technology: a practical introduction to computers & communications. Brief version SN - 0256261474 AV - QA76.5 .Sa93 1999 U1 - 004 21 PY - 1999/// CY - Boston PB - Irwin/McGraw-Hill KW - Computers KW - Telecommunication systems KW - Information technology N1 - "International edition"--T.p. verso; Includes bibliographical references (p. 335-336) and index ER -