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Editorial Team
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Asked: 2026-05-16T01:37:30+00:00

I’ve been using Linux for several years, but never stepped beyond installing from a

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I’ve been using Linux for several years, but never stepped beyond installing from a CD/DVD. If the app manager didn’t have what I was looking for in the software, then I was a lost cause.

But right now I’m trying to get a grip around what “Linux” is.

The first word that pops into my head is “kernel”. After reading on Wikipedia, I understand that a kernel is software running to give other software (OS + apps) access to hardware (CPU, RAM+++). It also handles memory, but isn’t that what the OS is supposed to do (what I remember from OS class)?

Is the Linux distro just a packed list of software?

Take my favorite distro: Fedora. It’s now in version 14 and ships with kernel 2.6.35.

Does the kernel come from somewhere central and is the core of every Linux distro? If this is true, then is the Linux distro just a way of making the computer with the kernel more user-friendly to use? In that way, the distro+kernel is the OS because the one without the other is not usable (maybe pure kernel, but who sits on that?).

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  1. Editorial Team

    Pretty much correct. To me, “linux” is just the kernel. But it is pretty common to refer to entire distributions as linux. That is what annoys RMS so much. He maintains it should be called GNU/Linux, as he sees distributions as the linux kernel plus the additional software from the GNU project. This makes sense too but I never use the term GNU/Linux. I am either talking about the kernel linux, or “linux distributions”, or a specific distribution.

    So yes. A distribution is just the kernel (which may include distribution specific patches) plus all the extra programs that make it usable.

    The kernel is a central project, and is nominally the same in each distro, but most distros customize it a bit.

    And the extra software doesn’t just make the kernel more user friendly, it makes it usable at all. A kernel is just interrupt handlers, device drivers, and system calls. It basically virtualizes the hardware and provides a standard environment for programs to work on.

    As far as the phrase “operating system” goes, it can be confusing. Some people may say the kernel IS the operating system, and everything else is either a utility or an application or something else. Other people may say the kernel plus some other packages make up the operating system, but most of the software is not part of the operating system. Others may say all the software in the distro forms part of the operating system.

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