A 7200 laptop hard drive is a laptop hard drive that spins at 7200 rpm.  This is in contrast to the normal laptop hard drive, which spins at just 5400 rpm.  The stated reason that most laptop hard drives spin so slowly is to conserve power and minimize the production of excess noise and heat.  The other recommended drive is a flash drive, which has no moving parts, but is only available in smaller sizes and comes with a higher price tag.

As previously stated, the 7200 laptop hard drive spins faster than a traditional laptop hard drive.  It also has a different way of storing data, using perpendicular storage technology instead of the traditional horizontal storage.  This increases storage capacity to a whopping 160 gigabyte capacity.  The hard drive on the laptop computer I have maxes out at 1 gigabyte, so it is easy to see the difference in capacity.

The 7200 laptop hard drive is designed for use in a wide range of systems, including laptops, notebooks, and any other system that the user is looking to upgrade.  This is especially true for those users looking to upgrade their notebooks to a true PC experience.  One option that I particularly like, especially seeing how unforeseen things keep on happening, is the ability of the hard drive to sense when it's in free-fall.  The sensors built into the laptop have the ability to protect the hard drive from a fall as little as eight inches in height.  This is done sensing any changes in acceleration due to the force of gravity, then removing the head away from the disk drive to prevent loss of data and other problems, like drive damage.  As far as data storage capacity goes this hard drive comes in 80 gigabyte, 100 gigabyte, 120 gigabyte, and 160 gigabyte capacities.   This is far faster than any notebook PC I have encountered to date.

The name of this wonderful drive is the Momentus hard drive.  This entire series is built tough enough to withstand more than ordinary wear and tear—up to 900g's of non-operating shock and up to 350g's of operational shock.  The purpose of this is to protect data from accidental erasure and to protect the drive from damage during operation in environments where high frequency vibrations are the norm, such as an archeological dig.  Another good thing is that these hard drives are not supposed to draw much power, making the battery last much longer between charges.