The library computers are available for use to locals and tourists....usually they give you a 30 minute time limit, but if it is empty you can stay longer. Just FYI, dress a little conservative when you go.... The first time I went in a few years back I was wearing a pair of shorts (decent length) and a spaghetti strap tank top(not skimpy or revealing) but they did comment and let me know I was not dressed appropriately for the library. They were nice about it and let me stay, but just heads up there is some attire etiquette.