Anfinson, David IT essentials. PC hardware and software companion guide David Anfinson, Ken Quamme - 3rd ed - Indianapolis, IN Cisco Press c2008 - xxxvi, 616 p. : ill. ; 25 cm ; + 1 CD-ROM (4 3/4 in.) Includes index ISBN: 9781587131998 ISSN: 2007048435 Subjects--Topical Terms: ComputersMicrocomputers - Equipment and supplies Dewey Class. No.: 004 ANF