How Perpendicular Recording Works
HardwareSecrets has an interesting piece up describing how perpendicular recording works. If you don't know what this new recording technology is all about, just go and read the article right here. Most new hard drives are now using perpendicular recording, so if you are a true geek, you should at least know about it, even if it's of no practical use to you.
The majority of hard disk drives found on the market today use a recording technology called longitudinal, where bits are stored side by side on the magnetic surface. This recording technique has been used since the first hard disk drives. A new recording technology, called perpendicular, is being used on newer hard disk drives, allowing a higher recording density.