This book "is the perfect study guide to help you pass CompTIA's newly-updated versions of the A+ exams. It provides coverage and practice questions for every exam topic. The book contains an extensive set of practice questions, including 250 printed questions in three practice exams, while the CD-ROM test engine provides real-time practice and feedback with an additional 200 questions. Covers the critical information you'll need to know to score higher on your A+ exams!: Understand PC components, including motherboards, processors, memory, power, storage, audio, video, and I/O devices ; Install, configure, maintain, troubleshoot, and fix desktop and notebook PC hardware ; Install and configure Windows 7, Windows Vista, and other Windows operating systems ; Use Windows utilities to troubleshoot and fix operating system problems ; Understand essential networking technologies, devices, protocols, cabling, and connections ; Set up small office/home office networks, including Internet and Wi-Fi connections ; Troubleshoot and fix failed client-side network connections ; Secure computers and networks, identify security problems, and eliminate viruses and malware ; Detect and solve the most common printing problems ; Perform essential preventive maintenance ; Master essential safety and operational procedures for PC technicians ; Prepare yourself effectively for exam day. CD Features over 200 Practice Questions: Detailed explanations of correct and incorrect answers ; Multiple test modes ; Random questions and order of answers ; Coverage of each A+ exam objective." - product description.