I’m not sure but I think cable television uses a regional satellite signal which is communicated to large areas through a network of cable.

Companies maintain networks of server farms which hosts email providers, or at least I think.

I suppose sensor computing along with technologies in general is defined in relation to humanity. The technology doesn’t exist or achieve meaning/purpose without human interaction/presence. Art which uses technologies is inexorably linked to this system. Intelligent interaction design facilitates activity and understanding between art and audience.