TY - BOOK AU - O'Leary,Timothy J. AU - O'Leary,Linda TI - Computing essentials: 2005 complete edition SN - 00728360750072256486 U1 - 004 PY - 2005/// CY - Boston PB - McGrow-Hill / Technology Education KW - Information technology KW - The internet ; The World Wide Web; Electronic Commerce; System software; Database; Information system; System analysis and design N2 - Computer science ER -