The Apple PowerBook 15-inch may look exactly like other PowerBooks before it, but this one has some updates that make it even better.

Perhaps the most significant addition is Apple's new Sudden Motion Sensor, which protects your hard drive. The sensor is similar to the Active Protection System found in IBM's ThinkPad line: If your notebook experiences a sudden jolt (like a fall), the system parks the heads of the hard drive away from the spinning disks.



Link: PC Mag