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Considering Starting Linux
(ttrpg.network)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
I second the VM approach. You can mess around, try different distros and generally just get a feel for the whole thing. If you want a dedicated machine, any old box will do. A cheap mini PC or whatever you have lying around. One of the great aspects of Linux is that a lot of old hardware that may look obsolete suddenly gets a new lease on life.