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内容説明 Learn， prepare， and practice for exam success Master every topic on both new 2009 A+ exams. Assess your knowledge and focus your learning. Get the practical workplace knowledge you need! DVD Features 2 Complete Sample Exams Start-to-finish A+ preparation from the world’s #1 PC hardware expert， Scott Mueller! Master every A+ topic! Essential concepts and troubleshooting principles BIOS and CMOS Memory types and characteristics I/O ports and multimedia devices Video cards and displays Motherboards， CPUs， and adapter cards Laptop components Networking Security Windows Vista， XP， and 2000 Power supplies and system cooling Printers Safety and environmental concerns Test your knowledge， build your confidence， and succeed! Packed with visuals to help you learn fast Dozens of troubleshooting scenarios Real-world A+ prep advice from experts Easy-to-use exam preparation task lists Do I Know This Already? quizzes help you gauge your knowledge， focus your study， and review the material DVD Features 2 Complete Sample Exams Detailed explanations of correct and incorrect answers Multiple test modes Random questions and order of answers Sample videos from CompTIA A+ Cert Kit www.pearsoncertification.com