Hard Drive Comparison Courtesy of theTechReport.co

Posted by Matthew Brodsky

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Brand manufacturers such as Hitachi and Seagate, are now investing resources in cutting edge perpendicular recording technology. Does the humble Joe Soap notebook user really give a monkey's uncle about this information? - Well yes if they want a Mobile hard drive that rivals a desktop pc's drive performance. We're talking spindle speeds of around 7,200 RPM, and up to 160 GB of storage capacity.

The twothings to know about serial ATA drives, if you don't know muchabout them to begin with, are that they are better, and that mostlaptops don't have them. Does that mean most laptop hard drivesare inferior to desktop pc drives?

In general, yes. It means most of us have clunky drives that chug along atspindle speeds of around 4,200 RPM and only house about 30 to 40GB of storage space. In other words, that may leave us in need ofa laptop hard drive replacement. But before you drop the cash ona new serial drive with 120 GB of space and 7,200 RPM speed, itmight take some convincing to get it through your hard head thatyou need a new hard drive.

The whole reason behind inferior laptop hard drives is atradeoff for mobility. Mobile drives have to be smaller andlighter to fit into the smaller, ultralight laptop chassis. Well,duh! The average desktop hard drive weighs in at about half of akilogram, is about 4 inches wide, 1 inch tall, and nearly 6inches long. Laptop drives on the other hand, weigh in at only100 grams, nearly one-fifth the weight of the desktop's, and itis just 2.75 inches wide, less than half an inch tall, and about4 inches long.

So you can see why mobile hard drives can't pack thecapabilities of a desktop hard drive-there's no room. But whatthe smaller size does allow them to do is run on less batterypower (again, they're built for mobility), and laptop drives canusually take more of a beating than their desktop brethren. Sothere is some take in this give and take.

But that doesn't mean you have to always be stuck between a rockand a hard drive. Manufacturers out there like Fujitsu,Hitachi, Seagate andWestern Digital are producing hard-to-beat mobile ATA hard driveswith up to 7,200 RPM speed and up to 160 GB of storage. They'reeven getting into the newest hard drive technology-perpendicularrecording. Standard hard drives store info literally in a lineparallel to the drive's surface. But by going perpendicular, harddrives can squeeze out more storage juice.

More - Laptop Hard Drive Comparison at the TechReport

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