this post was submitted on 14 Jun 2025
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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.
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I picked up a used 2018 Fujitsu office PC with an i5-7500 for $60 (from a physical recycle shop, with a 14 day warranty) and it draws 15W idle. Way better value than a Pi (once you've added case, cooling, PSU etc) for running home server stuff.
A Pi still kills for "Arduino plus plus" use cases where you need the size, GPIO or can optimize the heck out of power usage on a battery.
It's even worth pointing out you can disable various parts of the pi so it uses / needs even less juice.