BBC4 年
Parallel and perpendicular lines
Perpendicular lines meet at a right angle. A right angle is a quarter turn, which is 90 degrees (90˚). Right angles are sometimes shown with a small square where the lines meet. Perpendicular ...
PC Magazine6 年
perpendicular recording
Also called "vertical recording," Toshiba and Seagate introduced perpendicular recording drives in the 2005-2006 time frame. Other vendors followed, and densities reached 400 gigabits per square ...
BBC4 年
Parallel and perpendicular lines
Perpendicular lines meet at a right angle. A right angle is a quarter turn, which is 90 degrees (90˚). Right angles are sometimes shown with a small square where the lines meet. Perpendicular ...