DESKTOP AND SERVER:
-Windows
-Unix
-Linux
-macOS

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​Available Operating Systems

Operating Systems with the Linux Kernel.

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Main types with examples:
- Enterprise - solutions for businesses and organizations: RHEL (Red Hat Enterprise Linux), CentOS, SUSE, Debian, Ubutun LTS
- Consumer - products for individual users: Fedora, Ubuntu (nonLTS), openSUSE
- Experimental: Arch, Gentoo

​Linux Distributions

​Check your version:

​Related Distros:

Sometimes Enterprise editions have consumer editions where they can keep up with hardware changes and innovations.
They share the same packaging.
Example: Ubuntu and Kali are based off of Debian (APT/DPKG).
Fedora and CentOS are based off of Red Hat (YUM/RPM).

-Extremely common as server OS in enterprise sector
-Backend operations, clients unaware
-Cloud providers offer Linux
-Embedded systems with Linux

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​Linux Elsewhere

• Enterprise editions have longer support life than consumer. RHEL is supported for 10 years.

• Enterprise have scheduled updates to maintain the system

• Consumer editions often only offer support through forums/online communities

​Life Cycles

​Review

-Linux is one of many OS available for enterprise and consumer clients
-Enterprise editions are often paid for, but have better support
-Some consumer editions are associated with enterprise editions
-Lifecycles are how long the developer will support the edition of the OS
-uname -r shows the version of Linux on the system