Intro to Kernels and Shells in Unix for Mac OS X


show more Kernel and shells provides you with in-depth training on IT. Taught by Kevin Skoglund as part of the Unix for Mac OS X Users show less
please wait ...

Kernel and shells

Before we dive in to actually using Unix, there's one last fundamental concept that I want to make sure that you understand, because we're going to be using it a few times later on and that is the difference between the kernel and the shells. So the kernel is the core of the operating system in Unix. It's what takes care of allocating time and memory to program, really doing sort of very fundamental root level management of how programs go about doing their thing. Mac OS X uses the Mach kernel inside Darwin to do that. So if you ever hear someone refer to Mach kernel, that's what they are referring to, is this very central part of the Unix operating system that really just takes care of how the operating system handles very basic tasks like memory management.

Then outside of that there is the shell. The shell is the outer layer of the operating system. That's what we see when we open up a Terminal window. We're working in the shell. It interacts with the user and we...

Kernel and shells
Video duration: 5m 25s 6h 35m Beginner

Viewers:

Kernel and shells provides you with in-depth training on IT. Taught by Kevin Skoglund as part of the Unix for Mac OS X Users

Subject:
IT
Software:
Mac OS X Unix
Author:
please wait ...