Let’s leave the hard drives as they were a few years ago, but they still change in many ways. Offers many new features to reduce data bottlenecks and accelerate the performance of modern hard drives. The hard drive is a dust-free environment inside a well-closed enclosure, which is necessary to prevent damage to the internal parts. A number of discs, called dishes, turn on the spindle. There may be one to five dishes in a drive, although most readers contain only one. For each dish, there is a small arm with a read / write head at the end. There is one arm for each satellite dish, which extends its hand over the satellite dish, just as the turntable and the president modify the data on the surface. These heads never touch the dish, but float a little above.
All readers have this basic design, but take advantage of other techniques to get the most out of it. There is no big difference between competitors when using comparable systems. Discs with the same specifications, from different manufacturers, will not perform very well.The engines are of different sizes. The standard desktop hard drive is 1 inch high, while the notebook models are 9.5 mm or 12.5 mm, the latter being very bulky for today’s laptops. There are also available property sizes.
The number of dishes depends on the use of the reader. Most players contain only one satellite dish, which reduces the number of moving parts, arms and heads, reducing the risk of drive failure. Several dishes allow for greater storage capacity. Laptop drives can hold up to two trays. Desktop readers have 3.5-inch parables and enterprise hard drives look like 3.5-inch drives, but contain 2.5-inch parables. Portable players contain 2.5 and 1.8 inch tablets, while some small readers use one or 0.8 inch drives.
The speed of rotation, the speed at which the plates turn in the drive, makes a big difference in the performance of the drive. Think about it: The faster the rotation speed, the faster the information you search for read / write headers, the faster you look for it. The disks and workstations on the server are typically in orbit at 15,000 or 10,000 rpm. The WD Raptor is an exception for desktops, which also runs at 10,000 rpm, but generally runs at 7,200 rpm. However, the price of Raptor is very high and represents more than 150 GB of hard disk of 500 GB.
The laptops disks turn at 4,200 rpm and are slowly replaced by 5,400 rpm. Smaller portable drives operate at 4200 rpm, while smaller drives operate more slowly.
The cache frequently stores the data used so that you can send data directly from there, without having to read on the surface of the dishes. This greatly improves the speed of the data accessed frequently. Cache disks will provide faster performance. Some drives offer up to 16 MB. However, the largest 8 MB was found, with 16 MB offering little extra performance beyond 8 MB.
The difference in performance within a family of hard drives is very minimal. Larger differences can be found by increasing up to 10,000 rpm, but imposing a clear price penalty. To get the highest value per gigabyte, divide the total price by the size of the hard drive in GB and start from it.