A job to remember what sort of physical connections would be available for a system that old!
Assuming it is not a laptop I wonder if it will have any ethernet ports for cable connection, and it won't have USB. I'd also be surprised if it had any other adapter slots on the board to take a wireless card.
Assuming you were lucky enough to have a means of physically connecting a router, a 95 system will struggle in todays environment. ISP software if provided may not work on anything older than 98SE