The bits are then represented as regions of upward or downward directed magnetization. Here is how Seagate explains it in several of its articles at : In perpendicular recording, the magnetization of the disc, instead of lying in the disc's plane as it does in longitudinal recording, stands on end, perpendicular to the plane of the disc. So, what is perpendicular recording, and why do we care? The main concept behind perpendicular recording is rather simple: data bits are switched from being parallel to the plane of the disc to being perpendicular. Technologists have been researching and perfecting the technology for over ten years. You may be thinking that you've heard of perpendicular recording before, and that is probably because Seagate introduced mobile hard drives (2.5') using the technology almost a year ago.

Along with bringing a new line and the highest capacity drive to the market, Seagate is also the first company to bring 3.5' desktop drives that use perpendicular recording to the market. While that is impressive in itself, there is more to the story. Seagate recently released its new Barracuda 7200.10 storage line, and with that, the company introduced the largest hard drive on the market at 750GB.

Seagate barracuda 7200.10 320gb review