If you want to run a full node on the Bitcoin network, you might want to do so on a computer that doesn't use so much power and is very inexpensive. The Raspberry Pi might seem as an obvious choice for that. Here's a tutorial on how to install the newest version of Bitcoin Core on the Raspbian OS, which is based on the Debian GNU/Linux distribution. If you have used Debian or Ubuntu Linux, you'll find many things familiar about Raspbian.