Seagate ships 160GB notebook HDD with perpendicular recording

Seagate Technology has begun shipping a 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, the Momentus
5400.3 is a 5,400-rpm drive that operates with 4,200-rpm power efficiency to
extend battery life. It delivers 132 Gbits per square inch to provide high
levels of drive capacity and performance. 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.
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. It 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. The drives are covered by Seagate's five-year warranty for
customers that buy through authorized distribution.

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