Can't Connect to a Port - HELP

I'm new to this so I'm a little clueless at this point. I'm trying to connect my arduino to the computer, but it won't let me select a port. I have my board selected, but not a port because no ports pop up on the select board/port menu. When I go to the serial ports tab on the side, it is grayed out. What do I do?


Any information in the device manager (windows) or dmesg (linux)? No idea about Macs.