comm.stage.accomm.stage.ac/gfke2014/docs/Keynote_Mr_Kenneth_Cukier.pdf · 1987 analog 2.6 billion...
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comm.stage.accomm.stage.ac/gfke2014/docs/Keynote_Mr_Kenneth_Cukier.pdf · 1987 analog 2.6 billion 2007 analog 19 billion GB 2000 analog storage digital digital 0.02 billion digital