In one a university professor returns home and turns on his computer, in the form of a tablet the size of a large-format book, which informs him that he has several calls waiting.
A university professor returns home. This is in one. A university professor turns on his computer the size of a large-format book. This is in the form of a tablet. This is in one. He has several calls. This is what the size of a large-format book informs him. These several calls are waiting.