Check out https://www.emudeck.com/ if you are looking for emulation which is what I assume you are looking for but if not you can disregard

Bad news: nothing is really worth salvaging except maybe the HDD as a spare data drive but SSDs are cheap enough to warrant the upgrade and the TV (though a monitor would be better)

Good news: PCs aren’t that expensive right now and you can make a good build for even a cheaper budget. Check out this channel for more info https://youtube.com/playlist?list=PL30pfjH1BVN908ZV3QJRAakq-4mANnInm&si=Wth4bAzl_3uA5Mk-