Computer Service and Repair provides foundational knowledge of computer hardware, operating systems, and application software. In this book, you will be guided through upgrading, configuring, troubleshooting, and networking desktop computers, laptops, and mobile devices.   This text is aligned to the CompTIA A+ Certification Exam 220-1001 (Core 1) and 220-1002 (Core 2) Objectives. Each chapter begins with a list of exam objectives covered within that chapter. In addition, these same objectives are noted with an icon at the point of coverage within the text to illustrate where they are met. Chapters then conclude with a set of sample A+ exam questions to help you study and prepare for certification. The CompTIA A+ Exam is one of CompTIA’s four Core Skills Certifications, which provide a pathway to careers in either cybersecurity or IT infrastructure.   Additionally, the text includes content that goes beyond the scope of the CompTIA A+ Certification Exam. Topics such as integrated circuits, power and electricity, and binary and hexadecimal math and conversion are introduced with quality instruction. It also features valuable information about searching for employment, submitting resumes, digital citizenship, and soft skills desired by employers. This will not only provide you with well-rounded instruction buy also prepare you for the workplace.  Computer Service and Repair provides a thorough introduction to information technology to help you earn CompTIA A+ Certification and get a head start on your career. This will help you stand out in an increasingly competitive job market.