Here's the book you need to prepare for CompTIA's A+ Exam. It has the most up-to-date content needed to pass the A+ Core exam and the latest coverage of memory, bus, peripherals, and wireless technologies for the Operating Systems exam. This Study Guide provides: full coverage of every exam objective; practical information on network hardware; hundreds of challenging practice questions, in the book and on the CD; leading-edge exam preparation software, including a testing engine and electronic flashcards; authoritative coverage of all exam objectives, including: core hardware installation, configuration, and upgrading; diagnosing and troubleshooting; preventive maintenance; motherboards, processors, and memory, printers, basic networking, operating system technologies, OS fundamentals, Installation, configuration, and upgrading, and, diagnosing and troubleshooting networks.