Ask HN: Need ideas for a talk to a class of business informatics students

I'm going to deliver a talk to a class of 17-19-yo Polytechnic students studying business informatics. In their course, they learn finance and IT. I want to open their eyes to the power of information and the ability to process it, and how computers are being used to rule the world. I want to give an inspiring and eye-opening presentation. I don't want to give a dry lecture. I want to deliver an inspiring and informative presentation. I would like to ask HN for ideas on what topics to cover, interesting related ideas and resources I can draw from.

BTW, my background is in software engineering on Internet backend systems and only recently stock trading systems, so I'm very comfortable explaining technical things but I think these students probably want a more big-picture business-related perspective.