Chapter 3 System Firmware Terms and Concepts

For anyone new to Intel® architecture, the concepts behind three-letter acronyms can be a bit overwhelming. This chapter explains numerous concepts that should help set up the basic terminology used in future chapters. Many concepts are introduced, and it is best to refer to this chapter as you progress through the book.

Typical PC/Intel® Architecture Overview

By design, Intel architecture is unique and somewhat complicated. To boot, firmware must initialize the hardware by using either a Basic Input Output System (BIOS) or a custom boot loader solution. Certain subsystems, either integrated in silicon or added as a peripheral, may require additional firmware, which is obtained from that vendor.

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