The Internet works because a lot of people cooperate to do things together.
TCP works very hard to get the data delivered in order without errors and does retransmissions and recoveries and all that kind of stuff which is exactly what you want in a file transfer because so you don't want any errors in your file.
Another aspect of our work is multimedia teleconferencing.
I think that audio and video over the internet in the sense of teleconferencing and telephone calls. Maybe we'll actually have picture phone through your work station.