Danarvis Mitchell doesn&rsquo;t own a computer. Actually, she doesn&rsquo;t really know how to use computers either. Here&rsquo;s what Mitchell can&rsquo;t do: touch-type, email, or look for a job online. Here&rsquo;s what she can do: test your hard drive to make sure it works, use Linux to wipe your hard drive, and navigate the maze of [...]