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内容説明 Includes Coverage of Windows 7 Start-to-finish A+ preparation from the world’s #1 PC hardware expert， Scott Mueller! Master every topic on both new 2011 A+ exams. Assess your knowledge and focus your learning. Get the practical workplace knowledge you need! 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 7， 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 Mark Edward Soper has taught computer troubleshooting and other technical subjects since 1992. He is the author of Sams Teach Yourself Windows 7 in 10 Minutes， Absolute Beginner’s Guide to A+ Certification， and many other titles on Windows， networking， and hardware upgrades. He is a CompTIA A+ Certified technician. Scott Mueller is the PC industry’s most trusted， authoritative hardware expert. He has personally taught PC repair to thousands of pros and enthusiasts. His book， Upgrading and Repairing PCs， has sold more than 2.2 million copies， making him the world’s most successful PC hardware author. David L. Prowse is a computer network specialist， author， and technical trainer. He has taught CompTIA A+， Network+， and Security+ certification courses to more than 2，000 students， both in the classroom and via the Internet. As a consultant， he installs and secures the latest in computer and networking technology. He has authored and coauthored a number of networking and computer titles for Pearson Education， including CompTIA A+ Exam Cram， Fourth Edition.