I’ve seen videos of people running Damn Small Linux with a GUI on Pentium 1s.
None of them are very recent, so I don’t know how well ‘modern’ DSL would fare on a P1, but there are a few recent videos of people browsing the web using Dillo on Pentium 3s.
I must still have a Pentium S with Windows 98 back at my mom’s house. Now I am wondering if it could run Linux.
If you’re not planning to run GUI
I’ve seen videos of people running Damn Small Linux with a GUI on Pentium 1s.
None of them are very recent, so I don’t know how well ‘modern’ DSL would fare on a P1, but there are a few recent videos of people browsing the web using Dillo on Pentium 3s.