There are many components that make a computer run, but the hard drive is of course one of the most important. If the hard drive fails, the computer will quickly become unusable, so it is important to choose this vital component with care, and to shop around for it carefully.

Of course the computer will come with a hard drive already installed, but in many cases the size of this drive will not be sufficient. As more and more of us download music, movies and photographs to our personal computers, the need for storage space has increased exponentially, creating a need for bigger and bigger hard drives.

Fortunately, as the need for storage space has increased, the price of that storage space has been steadily decreasing. When personal computers first hit the market, the cost of storage space was one of the biggest stumbling blocks, and in many cases it simply was not possible to build an affordable machine that would also be able to store large amounts of information.

As technology has increased, however, the prices of this storage have dropped dramatically, and many of those thumb drives we carry around these days have a greater storage capacity than some of the earliest hard drives. What this means to you as a hard drive shopper is that you should always buy the largest hard drive you can afford. No computer owner has ever regretted having too much storage space, but many of them have regretted not having enough.

The speed of the hard drive is another important consideration, and it is a good idea to look for the fastest hard drive you can find. The speed of the hard drive will be expressed as an average seek time reading, and this reading will be expressed in milliseconds. The lower that seek time number, the faster the hard drive will run, and it will likely be more efficient as well.

The brand name of hard drive is important as well, and many computer users have their own favorite brand of drive. It is a good idea to purchase hard drives only from established and reputable companies, since off brand drives may not be manufactured to the high quality standards of the largest manufacturers. Seagate and Western Digital are two of the largest drive manufacturers, but there are a number of other excellent brands as well.