Create A Database. Or HDD Vs SSD


Half a century ago, flash – memory was not distributed on such a massive scale, and its cost sometimes reached several thousand dollars for 10 MB. However, the IT industry is developing rapidly enough, which inevitably leads to great competition, as well as lowering the cost of finished goods.

Today, the main technologies for the accumulation and reading of information are HDD and SDD storage, each of which has its advantages and disadvantages. So when choosing a particular store, it will be difficult for a person who does not know all the intricacies of each technology to make a choice. For the device to work efficiently and without failures, you need to know some rules that will help when choosing a drive.

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HDD drives


HDD technology occupies the market of IT-technologies, leadership positions for many years. Thanks to the mastered technology for the production of drives, the cost of one terabyte of memory was reduced to $ 50. The principle of operation of a hard disk is to write and read information employing magnetic pulses that enter special cells with a positive or negative indicator.

Depending on the size of the memory, such cells can be up to tens of billions on one device. Reading and writing take place from a special head, which is placed on the spindle, the oscillation frequency of which can reach 2000 m / s. The surface of the disc has never come into contact with the head. This is achieved thanks to the oncoming airflow, which maintains a constant gap of 10-15 nanometers.

The complexity of the design, as well as the presence of rotating elements,  make the HDD system very vulnerable to shock, as well as other mechanical influences. Hard drives are ideal for storing large amounts of information, such as music, movies, programs, games Pubg lite for PC. If this drive is used as the basis for the operating system, computer performance may decrease significantly.


SSD technology



Solid-state drives or SSD memory is not widely used due to its high cost. So storage with a capacity of 32 gigabytes, the user will cost about $ 100. Today, there are several basic technologies that leading manufacturers work on: the Flash layout, as well as the operational principle of operation. Such systems store information on special microcircuits, which are arranged with blocks and sectors.

Thanks to the missing rotating elements, SSD drives consume less power and do not emit extraneous noise. Also, these devices are widely used on various portable gadgets, such as netbooks, tablets, ultrabooks, laptops. So with a strong shock or push, the SSD storage will not fail, or will not lose a large amount of data.

Today, solid-state technology is used only for storing operating systems, since in this way it is possible to increase the performance of a computer or portable device, making it more autonomous. SSD memory is not able to completely replace the HDD hard drives, because their cost is much lower, and the amount of data storage exceeds hundreds of times. Today, two different technologies are used in a pair, complementing each other, thereby increasing the productivity of modern computers.