Comment by chocochunks
3 hours ago
I went to school too. Sometimes at school we would do presentations using a projector connected by HDMI, maybe you could get away with the room computer but that only had USB A ports being some ancient desktop. Sometimes we did group projects and rather than huddle around one tiny 13" or 15" laptop screen we used one of the big ass TVs in the rentable group study rooms.
It's not tons of super fast IO. It's pretty basic IO.
Even then the problem can be solved by a cheap usb a + c flash drive. At least in offices every meeting room I’ve used for a while now has a usb c dongle for the TV.
HDMI has been less common than usb c on laptops for quite a long time now.
Also, a large fraction of students these days use Google Docs. I don’t have first-hand experience, but I imagine they would either share presentations with the account the shared computer is logged into, or log into their own account on the shared computer. No hardware involved either way.