I recently purchased a couple of old PowerBook G4's (the last models from 2005, so 17 years old) There is a community still making new software for these old PPC Macs, and a custom version of MacOS with modern updates including security patches was just released.
They have USB 2.0, so transferring files is no issue. They have Dual-Layer DVD drives, not floppies. I brought the PowerBook with me to a hotel and was able to connect to their still active 802.11g Wifi. It browses sites like hacker news almost as well as a modern laptop. Although, Javascript brings it to a crawl. It can still edit video in Final Cut, make music in Logic 9, and play games like Halo 1.
Honestly any highly specced laptop made with a Core 2 Duo and up (so ~15 years old or newer) is still usable today.
https://forums.macrumors.com/threads/sorbet-leopard-your-pow...
They have USB 2.0, so transferring files is no issue. They have Dual-Layer DVD drives, not floppies. I brought the PowerBook with me to a hotel and was able to connect to their still active 802.11g Wifi. It browses sites like hacker news almost as well as a modern laptop. Although, Javascript brings it to a crawl. It can still edit video in Final Cut, make music in Logic 9, and play games like Halo 1.
Honestly any highly specced laptop made with a Core 2 Duo and up (so ~15 years old or newer) is still usable today.