As the only authorized Companion Guide for the Cisco Networking Academy, IT Essentials: PC Hardware and Software Companion Guide, Fifth Edition supports the version 5 course. Students pursuing careers in IT will not only learn how computers work, how to assemble computers, and how to safely and securely troubleshoot hardware and software issues, but will also be prepared for the CompTIA A+ certification exams 220-801 and 220-802. With more than 1300 pages of activities, including Windows 7, Windows Vista, and Windows XP variations covered in the CompTIA A+ exam objectives, practicing and performing these tasks will reinforce the concepts and help your students to become successful PC technicians.