Giving on the 98…

About two to three years ago, I was given an old computer with Windows 98 on it (to help with school work). However, the computer (which has a 300 mhz processor and now a whopping 160 MB of RAM) runs so much slower than both my old laptop and my current laptop that I no longer see a reason to keep it anymore, other than for testing an alternative OS (i.e. one of those Open-Source OS’es that so many in this community support).

And so, the question: Does anyone have recommendations for a decent Open-Source OS to install on this computer?