...and also your phone ROMs, if you flash them. And drivers. And everything else you need to operate your devices. I have a Moto G2 a.k.a. "Titan" (2014), flas

...and also your phone ROMs, if you flash them. And drivers. And everything else you need to operate your devices. I have a Moto G2 a.k.a. "Titan" (2014), flashed it to LineageOS, bricked it three years ago, got another phone, recently checked it out again, and couldn't download LineageOS for it anymore. Luckily, MicroG still had a ROM for it, and now it works fine, but I'd've preferred the pure LOS version, as it runs Android 7, on which Google Play Services is not an absolute necessity (with Android 8, you need it to get push notifications). I believe I can still get the source code for it and compile it myself, but I've never done that for an Android ROM before, and I'm not particularly keen on trying that out now. My point being: Your devices could, in theory, live forever, but the files for it (ROMs and drivers) may not always be available, and knowing the internet, won't. In my field (industrial IT), it's not uncommon to still have PCs running on Intel Core2 systems, but more and more vendors are dropping the product pages and driver files for them. Pentium 4s are also still being used, but good luck finding drivers for them.