Guide to the choice of the hard disk

With the evolution of everything that has to do with technology, the choice of components has become increasingly difficult. This applies to ram, video card, network card, and also for the hard disk.

Although the choice is complicated for all, it is perhaps more to the mass memory as an initial analysis it would appear that the only variable involved is that of space available for storage. Today, the choice must be made between hard drives, high-performance, medium quality or low quality. We see in this guide, what are the main problems in the choice of a Hard Disk.

1.) The classic market segments (disks for laptops, computer disks for Desktop and other servers) are no longer used today to actually divide the bands of mass memories. This is because, for every type of application, we can find hard drives of all types (Budget, mid-range or high-end). Especially in the professional field and the variations are many.

2.) As for the classification, we analyze mainly the physical size (ie the one that actually occupies the hard disk, for example, 2.5″ for laptops or 3.5″ for desktop computers), the capacity, the speed of rotation of the disc ( 7,200 rpm discs for the classics up to 15,000 rpm for the most expensive) and the interface that affects the speed of disk access (ATA, SATA, SCSI). In addition to these parameters, which are the main ones, it can be useful to look also the noise (which is especially crucial in PCs liquid-cooled) and current required for the power supply.

3.) Especially, if you seek performance of the best choice is undoubtedly on a solid state (SSD) hard disk. These types of hard drives are basically flash memory so that guarantee access times very low, minimal absorption of current, proven robustness and a speed unknown to traditional magnetic disks. Unfortunately the cons of this choice is that, coming from a newly developed technology, have not yet been reached high capacity and SSDs have an excessive cost for most people.

4.) For most people, the ideal choice is that of a classic magnetic disk which also has the advantage of having now a very high capacity, they speak quietly of some terabytes (TB) of memory, without spending inflated figures.