Keep your Older Computers for Longer

It's pretty easy to do as others have said. I would recommend plugging it into Ethernet during installation if you can and decide to install Linux. I say this bc as another user mentioned, you likely have a Broadcom wifi/bt chip and the drivers are "non-free". You don't have to pay for them or anything, but they can't include them with the installation image. If you're hard wired to internet, most will detect the hardware and ask if you want to install those drivers, though.