The only Cisco authorized textbook for the revised IT Essentials: PC Hardware and Software course (v4.1), from the Cisco Networking Academy Companion Guide format complements the online curriculum with added insight and instruction from Academy instructors A portable reference that supports all the topics in the new course, aligning 1:1 with course modules Features improved readability, enhanced topic explanations, real-world examples, and all new graphical presentations Aligned to new A+ objectivesThe IT Essentials: PC Hardware and Software Companion Guide 4/e supplements and complements the version 4.1 online curriculum offered by the Cisco Networking Academy. The Companion Guide is designed as the textbook for the Networking Academy course, offering you a portable desk reference of the course content to use anytime anywhere as a study aid. The chapter content aligns 1:1 to the online course module topics, but does not merely mimic the content word-for-word. The authors present the course material in the Companion Guide in a comprehensive manner, providing their own examples where necessary to augment your understanding of the course material. This book will have the CompTIA A+ seal of approval. The book focuses on the following elements to support the online curriculum: " Chapter Objectives are stated as questions at beginning of each chapter " Key terms listed in the Chapter openers " Enhanced readability for younger student comprehension " How To Feature provides step-by-step tasks for common activities " Key concept recaps, Check Your Understanding Questions, and next chapter previews are in a concise summary at the end of each chapter