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Most of you will be aware that your laptops hard drive is where you store all your files and programs, and that you have a limited amount of space governed by the size of your hard drive. What some of you might not know is that the type of hard drive you have can effect how fast your laptop will run. Here is a short tutorial to help you choose the fastest hard disk for your laptop.

The speed of a hard dish is determined by a couple of factors, the first of which is the speed at which it can operate. This is measured in RPM and speeds range from 4200RPM all the way to 10 000RPM. Most new laptops come with a 5400RPM hard disk which is OK and forms the standard speed these days. A 5400RPM hard drive will be fast enough for most laptop users, unless you are planning to play games or do graphical or video editing, where you should be looking at a 7200RPM hard disk instead.

The other factor influencing hard disk speed is the amount of memory it has also known as Cache, measured in Megabytes (MB). This can range from 2MBs to 32Mbs and the more it has the faster it will be. Most laptop manufacturers do not specify this so don't worry too much if you cannot find it out.

The other thing you need to know is how much hard drive space you will need in your laptop. The size of a hard drive does not influence its performance only the amount of data you can store on it. A song will use up about 0.003Gbs, a full length movie about 1GB and computer games will use anywhere from 5-15GBs of space. You will need to estimate the amount of space you will require.

There is only one type of hard disk that does not fit with our guide. A Solid State Drive (SSD). These are like giant USB flash memory sticks you might use to store files on when moving from computer to computer. The only difference is that they are large enough to act as your laptops hard drive. These perform far faster than even the best of conventional hard disks as they have no moving parts. However, as with all new technology they are very expensive so we recommend you stay away from these unless you want to show off or want very fast loading times.