I'm in the public library in Stillwater, Oklahoma. To use the library computers who have to use a reservation terminal and input your 14 digit library card number (yes, 14 digits) and your last name. It then assigns you to a computer. You walk over to that computer (you almost never have to wait) and input your 14 digit library card number (yes, the same 14 digits) to claim the computer for an hour.
Stillwater is the county seat of Payne County. I'm not sure what the population of Payne County is, but the Stillwater Library seems to be prepared for a population of at least 100,000,000,000,000 or so.