Arduino is a microcontroller designed for real-time hardware control with very low power use. Raspberry Pi is a full computer that runs operating systems and handles complex tasks. Arduino excels at ...
Learn the ABCs of BSD.
If you'd like a lightweight Linux distribution for that aging hardware, but you want a more modern-looking UI, consider Waydog.
For the longest time, Linux was considered to be geared specifically for developers and computer scientists. Modern distributions are far more general purpose now -- but that does ...
Sorry, but I moved on from Ubuntu, because it frankly doesn't fit me anymore.