While the hard-drive industry has been using longitudinal recording successfully for five decades, it is now within two product generations of reaching its practical limit. For about the past decade, ...

The common method of magnetic disk recording in which vertical bits take up less space than horizontal bits. Also called "vertical recording," Toshiba and Seagate introduced perpendicular recording ...

Higher - The gradients of two perpendicular lines will always multiply to make –1. Make sure you are familiar with finding the equation of a line and calculating gradient to understand equations of ...