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- In this video, I would like
to talk about the kernel.

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So the kernel is the heart
of the operating system,

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and the kernel itself is
an open source project.

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It's written in the C
programming language,

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and it controls all major
functions of the hardware.

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The kernel also is the first
part of the operating system

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that is loaded while booting,

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and it enables the
computer to use hardware

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by using drivers,

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which in Linux are
implemented as kernel models.

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Let me make a drawing so
that I can visualize this.

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Alright, let's try to
understand what kernel is doing.

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So, on your computer

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it's all about the application.

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And your application, if it's
a traditional application

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and not a container,

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needs to communicate to your system.

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The first part that fits in is glibc;

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glibc is providing
generic system functions,

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and it allows your
application to communicate

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with the lower layer.

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And this lower layer, that's a kernel.

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So the kernel is the heart
of the operating system

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and the main mission of the
kernel is to communicate

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to the hardware in your computer.

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And in order to do so, the
kernel is using kernel modules,

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where kernel modules
really are just drivers.

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In the next couple of videos

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we'll investigate how these work.