perpendicular recording

(redirected from Perpendicular Recording Technology)

perpendicular recording

[‚pər·pən¦dik·yə·lər ri′kȯrd·iŋ]
(electronics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

perpendicular recording

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 drives in the 2005-2006 time frame. Other vendors followed, and densities reached 400 gigabits per square inch by 2009. See areal density.

A Trillion Bits Per Square Inch
Heat-assisted magnetic recording (HAMR) combines perpendicular recording with a laser to heat the medium and bumps areal density to more than a trillion bits per square inch (see HAMR). See superparamagnetic limit.


Perpendicular (Vertical) Recording
The magnetic flux coming out of the write pole (P2) affects the vertical bit directly below. It goes down to the soft underlayer and back up the return pole (P1).







Longitudinal (Horizontal) Recording
Before the perpendicular method, the bits were written horizontally on the disk platter. (Assistance with these illustrations courtesy of Hitachi Global Storage Technologies.)
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References in periodicals archive ?
The award comes just weeks after Barracuda 7200.10 drive, the first desktop hard drive to use capacity-boosting perpendicular recording technology, won PC Magazine's 23rd annual Technical Excellence Award for storage.
Models equipped with the SATA interface offer 32Mbytes of onboard buffer memory.The silent version of the drive, known as the Cinemastar 7K1000, targets users interested in quiet drives for home-theatre PCs and digital video players.All 1Tbyte Deskstar models will make use of five platters and employ perpendicular recording technology.Perpendicular recording is a method of storing data perpendicularly (at a 90-degrees angle) on data platters rather than longitudinally.
The Seagate ST18 Series hard drive from Seagate, based on perpendicular recording technology, delivers industry-leading capacity and value on a single platter, for 60GB of storage in a compact 1.8-inch hard disc drive.
This preamp also supports next-generation perpendicular recording technology for increasing storage capacities in space- constrained small-form-factor drives.
The shift to perpendicular recording technology offers the potential for significant areal density increases.
Perpendicular recording technology lets the Cheetah 15K.5 deliver twice the capacity of 15K drives currently available while providing a performance increase over previous generations by as large as 30%.