TuxRadar takes a simplified look at the Linux kernel
. Targeted at users and application programmers, rather than system-level programmers, the article gives an overview of what the kernel does, with a bit about how it does it. "All the other pieces you find in a Linux distribution - the Bash shell, the KDE window manager, web browsers, the X server, Tux Racer and everything else - are just applications that happen to run on Linux and are emphatically not part of the operating system itself. To give some sense of scale, a fresh installation of RHEL5 occupies about 2.5GB of disk space (depending, obviously, on what you choose to include). Of this, the kernel, including all of its modules, occupies 47MB, or about 2%.
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