How important is it for a marketing person interning at a high-tech co. to learn tech? What's the fastest way?

I think the offer letter has been sent and I am a little scared since the products include Software, Operating Systems, Application Development, Storage, Servers, Desktops, Consulting & IT Services, System Options, Network & Security Products, etc. etc. all of which I only know enough to get by as your average computer user. Any tips on how to attain the most amount of knowledge as fast as possible? Like a cliffnotes type thing for the tech world? :) Thanks a million!