I believe that computer enthusiasts will not be unfamiliar with solid-state drives. Solid-state drives have ultra-high read and write speed and stability, which are unmatched by mechanical hard drives. In recent years, the development of solid-state drives cannot be underestimated, and people are gradually familiar with them , and people are more interested in the choice of solid-state hard drives when purchasing computers. Mechanical hard drives have encountered bottlenecks due to speed and stability, and are gradually being phased out. However, many people only know the speed of solid-state drives, but do not know what solid-state drives are. So today, I will give my friends an in-depth understanding and talk about the difference between solid-state drives and mechanical hard drives.
1. Development history
The Hard Disk Drive has a history of 60 years. In 1956, IBM invented the first mechanical hard disk, which has only 5MB of storage space, but consists of more than 50 24-inch discs. The volume it occupies is unimaginable in today's understanding of computers. But the main physical structure of the mechanical hard disk was determined from then and has been used since then. Nowadays, with the development of hard disks, mechanical hard disks are getting smaller and smaller, and their capacities are getting bigger and bigger.
Solid State Drives (Solid State Drives) are hard drives made of solid-state electronic memory chip arrays. In 1970, StorageTek Corporation developed the first solid-state hard drive. In 1989, the world's first solid-state drive appeared. And that is because people's awareness and demand for solid-state drives are not high. Until March 2006, Samsung took the lead in releasing a 32GB capacity solid-state drive notebook computer, and solid-state drives entered people's field of vision. Toshiba launched its first 120GB solid-state drive laptop, and solid-state drives have also grown rapidly in recent years.
2. Read and write speed
The reading speed of solid-state drives can generally reach 400M/s. During booting and data loading, the speed has been effectively improved, which greatly improves the running ability of the computer. The writing speed can also reach more than 130M/s. When writing big data, the more efficient storage capacity greatly shortens the office hours. Its read and write speed is 3-5 times that of ordinary mechanical hard drives.
3. Earthquake resistance
Because the mechanical hard disk uses the high-speed rotating platter and the magnetic head to read and write data back and forth, high-intensity vibration cannot occur, otherwise the contact between the magnetic head and the high-speed rotating platter will cause the platter to be scratched and damaged, resulting in the hard disk being scrapped. Therefore, vibrations must be avoided when using mechanical hard drives. Solid-state drives use solid-state electronic memory chip arrays, which are soldered on circuit boards. Compared with mechanical hard drives, they have a thinner body and better shock resistance.
4. Power consumption and noise
The high-speed rotation of the mechanical hard disk requires a high-power stepper motor to drive, while the solid-state hard disk does not need a motor to drive, so the power consumption of the mechanical hard disk is much larger. vibration and noise, while solid-state drives do not have these problems.
5. How to choose a solid state drive
At present, the rapid development of solid-state drives has also produced many manufacturers to participate in R&D and production, and many of them are mixed manufacturers or workshops, and the quality of solid-state drives is also uneven, so how to choose a good one? SSD?
When purchasing solid-state drives, try to buy well-known first-tier hard drive manufacturers, such as Samsung, SanDisk, Toshiba, etc., and choose well-known brick-and-mortar stores or guaranteed online stores to buy. In addition, the particle price of the flash memory chip largely determines the quality of the solid-state drive, so if the price is too low, you should be careful if you use inferior particles (black chips); or tlc, these are basically small workshops Produced, the number of erasing and writing is too low, and the data security cannot be guaranteed.
Summarize
The price of solid-state drives is generally higher than that of mechanical hard drives. With the continuous improvement of technology, the price of solid-state drives is getting lower and lower, entering the homes of ordinary people. At this stage, many computer geeks will use the hybrid solution of SSD+HDD to improve the performance of the computer. However, with the development of solid-state drives, higher and higher capacities will gradually replace mechanical hard drives.