
Laptop computer storage is racing fast towards the 500GB level with Fujitsu becoming the third hard-disk drive maker to announce a drive at that capacity.
Fujitsu is accomplishing this capacity by combining three disk platters–the magnetically-coated disks on which data is stored–each with a 170GB capacity inside the drive. Hitachi, the first company to announce a 500GB drive, and Samsung Electronics are also using three platter designs.