jan 1, 1951 - Magnetic Drive

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https://www.google.co.uk/search?safe=strict&rlz=1C1GCEJ_enGB822GB822&ei=m1sBXN7jIc3ikgWqn5GABQ&q=when+was+the+magnetic+hard+drive+invented&oq=when+were+magnetic+hard+&gs_l=psy-ab.1.0.0i22i30.220308.226276..228477...1.0..0.85.1307.25....2..0....1..gws-wiz.......0j0i71j35i39j0i67j0i131j0i22i10i30j33i22i29i30.1g6Gn_ISn6I

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30 Nov 2018

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