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CompTIA A+ 220-801 and 220-802 Authorized Cert Guide, Deluxe Edition, Third Edition by Scott Mueller, David L. Prowse, Mark Edward Soper

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Chapter 1. Technician Essentials and PC Anatomy 101

This chapter covers the following subjects:

The Essential Parts of Any Computer—In this section, you learn the most important features of desktop and laptop computers and where to find more information.

Hardware, Software, and Firmware—A computer is built from many hardware components, but without instructions in the form of software and firmware, it’s just a useless collection of parts. This section helps you understand how hardware, software, and firmware work together.

Points of Failure—Computers contain many components. In this section you discover how component failures can affect a system.

The CompTIA Six-Step Troubleshooting Process—Learn this process, apply it, and you’re well ...

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