Language Selection

English French German Italian Portuguese Spanish

'Perpendicular recording' to boost hard drive capacity

Filed under
Hardware

The next generation of personal computers and portable music players could hold 10 times more information than current models, thanks to a different way of writing magnetic data to a hard disc.

Japanese electronics company Hitachi announced on Monday that a number of its employees had begun testing the experimental technology, known as "perpendicular recording". The company aims to offer drives incorporating it to the public towards the end of 2005.

Hard drives store information by magnetising sectors of a disc in a specific direction, which then correspond to either a "1" or a "0". This is done by passing magnetic heads over the disc surface which magnetises the sectors in a direction parallel to its surface - so-called "longitudinal recording". The heads are turned around to impart the reverse polarity.

Perpendicular recording uses different-shaped heads to magnetise disc sectors so that the polarity points either up or down - at 90° to the disc's surface. Data can still be retrieved from the disc in the traditional way, using another head to detect the magnetic charge.

"It's a major technical change," says John Fox, business manager for Hitachi's European hard drive business. "But it's transparent to the user."

Perpendicular recording was first developed during the 1970s and several other hard drive makers, including Seagate and Toshiba, are currently developing similar technologies. Shu-ichi Iwasaki, of Japan's Tohoku Institute of Technology, who helped develop perpendicular recording, also welcomed the progress. "I am very happy to see that the technology will come into use soon," he says.

Full Story.

More in Tux Machines

Leftovers: Gaming

today's howtos

Leftovers: Software

Intel Beignet Is Working Out Surprisingly Well For OpenCL On Linux

Beignet is the project out of Intel's Open-Source Technology Center for exposing GPGPU/compute capabilities out of Ivy Bridge hardware and newer when using a fully open-source Linux stack. While Beignet differs greatly from Gallium3D's Clover state tracker, this Intel-specific open-source OpenCL implementation is working out quite well for Ubuntu Linux. While I've been writing about Intel's Beignet project since early 2013, it's probably been about a year now since I tried out the code, which is developed by Intel's OTC graphics team in China. This weekend I tried out Beignet v0.9.2 as trying out the newest Intel OpenCL code has been on my TODO list for a while and it's been working out rather well in my initial tests. Read more