November 2003
Beginner to intermediate
672 pages
18h 40m
English
Content preview from Malware: Fighting Malicious CodeBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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What Is the Kernel?
Before we get ahead of ourselves, let's take a look at the kernel's role in the operating system. In most operating systems, including UNIX and Windows, the kernel is special software that controls various extremely important elements of the machine. As illustrated in Figure 8.1, the kernel sits between individual running programs and the hardware itself. Performing various critical housekeeping functions for the operating system and acting as a liaison between user-level programs and the hardware, the kernel serves a critical role. Many kernels, including those found in UNIX and Windows systems, include the following core features:
Process and thread control. The kernel dictates which programs run and when they run by creating ...
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