2.5 Inch Hard Drives

Written by Nicole Madison
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Each year, hard drive manufacturers continue to look for new ways to increase hard drive storage capacity, while at the same time, decreasing physical size of hard drives. The physically smaller drives they manufacture are generally lighter weight, quieter and more power-efficient and are used in notebook computers and other consumer electronic devices.

2.5 Inch Perpendicular Hard Drives

2.5-inch hard drives are commonly used in most types of portable computers. 2.5-inch drives are typically made to operate on low power. This allows 2.5 inch hard drives the ability to run from USB or firewire power, without needing a separate source of power. 2.5 inch hard drives tend to have the added benefit, particularly for portable storage, of being capable of withstanding more physical trauma than desktop drives.

One recent notebook innovation is the 2.5-inch perpendicular hard drive. This compact drive uses perpendicular recording technology. In this drive, the disk is magnetized to make the bits stand on end, rather than lying flat, allowing manufacturers to pack more bits per square inch on a platter than is possible using the traditional parallel alignment. The resulting drive has nearly double the data capacity of standard drives. The concept of using perpendicular recording technology for hard drives is to take up less space by moving up rather than spreading out.

According to industry analysts, perpendicular technology in 2.5-inch hard drives is only the beginning. Experts predict the industry will need to convert to perpendicular technology in an effort to keep up with rapidly progressing storage technology. As the volume of business and personal data continues to grow, perpendicular technology may be just what the industry needs to continue making storage capacity grow in leaps and bounds.

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