Earning the right to be called a DURABOOK. The toughness is tested before the DURABOOK name goes on!
It's easy enough to say a notebook is tough. But we go a step farther with a battery of scientific tests that make sure that each DURABOOK can survive and thrive under conditions that would send lesser notebooks down for the count.
Here are just a few of the 'torture-tests' each notebook must undergo before the DURABOOK name goes on.