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Someone ran a modern Linux OS on a 30-year-old CPU, and it's surprisingly usable
(www.xda-developers.com)
A community for everything relating to the GNU/Linux operating system (except the memes!)
Also, check out:
Original icon base courtesy of lewing@isc.tamu.edu and The GIMP
Not surprising. Most Linux OSes are lightweight compared to Windows. And Moores' Law slowed down in the last 10+ years.