1. Small Physical Size
Laptop hard drives are obviously smaller than their desktop counterparts. This is needed for mobility and you usually find laptop hard drives of thicknesses around 10 to 12 mm. That is extremely thin and suits lightweight and portable laptop models.
The smaller size reduces the capacity of laptop hard drives as well (see Point 3 below).
Most laptop hard drives are very small
2. Lower Disk Speeds
Now, how does laptop hard drive speed measure up? Well, compared to their desktop and enterprise counterparts, laptop hard drives tend to be slower. You will usually find that a mobile hard drive spins at 5,400 rpm (although others spin with 7,200 rpm).
3. Hard Drive Capacity
Typical laptop hard drive capacities these days come at 100 to 200 GB. That's a lot of storage space compared to the days when you could only squeeze maybe 20 GB in laptop hard drive. Interestingly, Samsung has just released a 500 GB hard disk drive for laptops. That is amazing storage that you usually only get in desktops. Things are clearly progressing in the laptop world.
4. Solid State Drives
An important trend in laptop hard drives is the increasing use of solid state drive. What is a solid state drive? Well, a solid state storage device is like the thing that stores the music in your iPod nano or pen drive. It has no moving parts like a traditional hard drive, and is hence not subjected to damage due to jumps and shocks.
Technology has progressed to the point where solid state drives are increasingly more popular and also more affordable. Some examples of laptops with solid state technology options are the Apple MacBook Air, the ASUS Eee PC and the Toshiba Portégé R500.
5. Shock-Resistant Technology
One of the more recent innovations in laptop hard drives is that of
shock-resistant technology. If you own a Lenovo ThinkPad, you will notice that there is an icon on the lower right corner of your screen that changes when you suddenly move the laptop.
Now, there's an accelerometer inside the laptop which monitors any sudden changes in motion. If the laptop detects it, it will instantly park the heads on the hard disk to prevent them from corrupting data. Ingenious idea, huh?
Conclusion
I hope the above has given you some good insight into laptop hard drives and their features. The next time you need to upgrade your laptop hard drive, keep the above points in mind - they will help you make a better purchase decision. So until next time, good luck and happy computing!
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