What you have left is hard drive space. Not gonna get into "memory". lol
Kathy, depending on what you want to embrace, but Mac OS is my first choice for everyday stuff. No pain, no strain. It does indeed just work.
Otherwise, I am geeky enough to completely enjoy running Linux, which will run on any hardware.
Computers are machines. They do what we tell them to do. I've been geeking since the double digit Tandy TRS-80 days, and you've got to be over 50 years old to even know what that means. Mainframes and heck, even punch card machines before that. Ok....... TMI
Good old Radio shack

Opp's showing my age