Download or Streaming?

[Nekoyama]

My computer teacher gave me a question:
Data transmission into a computer is called?

I answered "Streaming" but he persisted on "Download"

Actually this is unclear because from here (http://en.wikipedia.org/wiki/Download) the difference of download and streaming is that streaming is used near immediately as it is received & not stored for long term, and in downloading, the data is only usable when it has been received in its entirety. And the additional information isn't in the question.

His reason is that "Streaming is for Videos (multimedia), not data." But when we play online games, open our browser, it's streaming, isn't it?

Thanks in advance, feel free to say that I'm totally wrong.