Chapter 1: PC Architecture

Labs you will perform in this chapter:

• Lab 1.1: Safely Examining the Computer

The inside of a PC is made up of modules and submodules, with the motherboard providing connection points for all the other modules. The processor (brain of the computer) performs mathematical and logic functions. The BIOS (basic input/output system) contains software for the POST (power on self test), the boot process, and hardware configuration information. The system memory (RAM) is usually located on the motherboard and is loaded with the operating system during the boot process. The CMOS (battery-powered memory) chip, which retains the setup information needed for the boot process, is on the motherboard as well. A variety of storage devices such as the hard disk and floppy drive are also mounted inside the computer case. Some of these items can easily be visually identified, whereas others are easier to identify through software.

In this chapter, you will learn how to identify these components and do so in an environment that is safe for both you and the equipment.

Note

For more information on PC architecture, see Chapter 1 of David Groth’s A+ Complete Study Guide (Sybex, 2003).