Chapter 4: Telling Your BIOS from Your CMOS

Exam Objectives

check.png Identifying the purpose of BIOS

check.png Upgrading a system BIOS

check.png Identifying the purpose of CMOS

check.png Identifying common settings contained in CMOS

A big part of system configuration is understanding what CMOS is and how the different settings within CMOS can help you troubleshoot a system. A wonderful talent to have as an A+ Certified Professional is the ability to understand CMOS and its functionality. Although CMOS doesn’t seem like a place where you’d need to go every day, many PC-related problems can be solved in CMOS.

In this chapter, you learn some of the common CMOS options that are found in modern systems. Keep in mind that these options might be labeled differently on your system or might not even exist on your system, as the CMOS setup program is unique to each system. For example, the CMOS setup program on a Compaq system differs from that of a Dell even though the concept of CMOS remains the same.

In this chapter, you also learn about the BIOS and its purpose to the system.

The BIOS and Its Purpose

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