Seagate announces 160 GB Hard Drive for Laptops

by Dhiram Shah

Seagate Technology has begun shipping the industry’s first 2.5-inch notebook PC disc drive built on perpendicular recording technology. Delivering up to 160GB of capacity, the most available in a 2.5-inch disc drive. Momentus 5400.3, a 5,400-rpm drive that operates with 4,200-rpm power efficiency to extend battery life, Seagate will also extend the advantages of perpendicular recording to its 7,200-rpm Momentus disc drives and to all of its 1- and 3.5-inch products. Perpendicular recording stands data bits on end on the disc, rather than flat to the surface as with existing longitudinal recording, to deliver new levels of hard drive data density and capacity. The new data orientation also increases drive performance without increasing spin speed by allowing more bits to pass under the drive head in the same amount of time.


The perpendicular recording performance boost comes without increases in power consumption or heat generation — crucial as remote users look to work longer between battery charges and system builders seek to pack more performance in smaller notebooks. Perpendicular recording also improves drive reliability by enhancing data resistance to thermal decay.
The Momentus 5400.3 hard drive now shipping to the channel features the Ultra ATA 100 Mbyte/second interface. Seagate will begin shipping Momentus 5400.3 with the 1.5 Gbit/second Serial ATA interface later this year.

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