A lot of mechanics haven't aged well, and it's also worth noting that there's no console release of these titles so you'll have to play on PC. Having said this, virtually any PC or laptop can run these titles, and the story is considered one of the most well-written in the entire series. They're worth experiencing if you love the lore and have already played the newer games. In fact, Fallout 1 and 2 are considered to have the best stories in the series, so at least check out a playthrough on YouTube even if you don't fancy playing them!