How much does it matter if you're a Mindset 1 person being asked to do things a Mindset 2 person does? This is admitted as a gross over-simplification, but, as you may have realised, I'm after the extreme end of the cohort: anything from the "I'm rubbish at computers (although I book holidays online, have a zillion friends on Facebook, etc. etc.)" downwards.
So while there may be a much more complicated picture out there, this one will do for now. I was reading Chris Jones recently (in J CAL 10.1111/j.1365-2729.2010.00370.x ) again on the Digital Native thing and want to steer well away from deterministic concepts. But here's the table from Lankshear and Nobel's New Literacies Sampler 2006 (you can get the whole book as a PDF ):