What are solid-state hard drives and mechanical hard drives?

Mechanical hard disk is our original traditional hard disk, which is mainly composed of eight parts, such as data converter, interface and cache. Solid-state hard disk (SSD) is a hard disk composed of an array of solid-state electronic memory chips. It mainly consists of a control unit and a storage unit.

Mechanical hard disk (HDD) is mainly used in our computer hard disk industry, but the application of solid state hard disk (SSD) is more and more extensive, such as our automobile, military and medical care. Solid state hard disk (SSD) uses flash memory as storage medium, so the reading and writing speed is much faster than our mechanical hard disk (HDD).

The difference between solid-state hard disk and mechanical hard disk

1, price

Although the price of SSD is decreasing year by year, the same price. Solid-state disk can only buy about 480G capacity, while mechanical disk capacity is as high as 2T, almost four times that of solid-state disk.

2. Power consumption and calorific value

The power consumption and calorific value of mechanical hard disk are much higher than that of solid-state hard disk, because solid-state hard disk generally uses MLC particles, so it has low power consumption and standby function with extremely low power consumption. When a mechanical hard disk needs a magnetic head to read data, it needs the disk to rotate, and the maximum rotation speed is 7200 rpm, which naturally generates a lot of heat.

3, running noise

Nowadays, solid-state hard disks are widely used in notebooks, so you can obviously feel the quietness when the computer is running. Especially for some mechanical hard disks that have been used for a long time, you can occasionally hear the friction between the hard disk needle and the disk.