Aside from the completely overused line "Hello IT, have you tried turning it off and turning it back on again?", the show has almost nothing to do with IT. Apart from a couple of IT-related plotlines, most of the episodes take place outside their office.
"The Internet" device. All the tech illiterate coworkers. Jen's imposter syndrome. Moss's on-the-spectrum reactions. Online dating when it was still nerdy. Novelty websites. Viral cultural events.
But it wasn't exclusively geek humor. There were broader episodes involving Jen's and Roy's romantic lives too.