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What's Inside a Hard Drive?

All hard drives share a basic structure and are composed of the same physical features. However, not all hard drives perform the same way — the quality of the parts inside the hard drive will affect its performance. Following is a description of the common features of the hard drive and how each part works in relation to the others. Hard drives are extremely sensitive equipment and the internal workings of a hard drive should not be handled by anyone other than an experienced professional.