The biggest function of SSD is fast reading and writing, so whether the computer is turned on or running some large programs or games, the shorter the time it takes to load applications, and what users feel is that the speed is faster. At present, SSD is widely used in military, vehicle, industrial control, video monitoring, network monitoring, network terminals, power, medical, aviation, navigation equipment and other fields.

Introduction to Solid State Drive

Solid state hard disk, referred to as fixed disk, is a hard disk made of solid state electronic storage chip array, which is composed of control unit and storage unit. Solid state hard disk is identical with ordinary hard disk in terms of interface specification, definition, function and use method, as well as product appearance and size. It is widely used in military, vehicle, industrial control, video monitoring, network monitoring, network terminal, power, medical Aviation, navigation equipment and many other fields.

Types of SSDs

Flash based: flash based solid state disk uses FLASH chip as the storage medium, which is also commonly referred to as SSD. Its appearance can be made into a variety of shapes, such as notebook hard disk, micro hard disk, memory card, U disk, etc.

DRAM based: DRAM based solid state disk: DRAM is used as the storage medium, with a narrow application range. It emulates the design of traditional hard disk, can be used by the file system tools of most operating systems to set and manage volumes, and provides industrial standard PCI and FC interfaces for connecting hosts or servers.

Functional characteristics of solid state disk drives

SSD has the characteristics of fast reading and writing, light weight, low energy consumption and small size that traditional mechanical hard disks do not have. At the same time, its disadvantages are also obvious. Although IDC believes that SSD has entered the mainstream of the storage market, its price is still expensive and its capacity is low. Once the hardware is damaged, it is difficult to recover the data; It is also believed that the durability of SSDs is relatively short.

The Development Course of Solid State Hard Disk

In 1956, IBM invented the world's first hard disk.

In 1968, IBM re proposed the feasibility of "Winchester" technology, laying the development direction of hard disk.

In 1970, StorageTek Company developed the first solid state hard disk drive.

In 1984, Toshiba invented flash memory.

In 1989, the world's first solid-state drive appeared.

In March 2006, Samsung took the lead in releasing a 32GB SSD laptop.

In January 2007, SanDisk released a 1.8-inch 32GB SSD product, and in March, it released a 2.5-inch 32GB model.

In June 2007, Toshiba launched its first 120GB SSD notebook computer.

In September 2008, Yizheng MemoRight SSD was officially released, marking the acceleration of Chinese enterprises into the SSD industry.

Advantages of SSD

Fast read and write speed: Flash memory is used as the storage medium, and the read speed is faster than that of mechanical hard disk. The SSD does not use a magnetic head, and the seek time is almost zero.

Shock resistance and fall resistance: Traditional hard disks are disk type, and data is stored in disk sectors, while solid state drives are made of flash memory particles. Therefore, SSD solid state drives do not have any mechanical components inside, so that normal use will not be affected even when they move at a high speed or even when they are overturned and tilted, and the possibility of data loss can be minimized in the event of collision and vibration.

No noise: SSDs have no mechanical motors and fans, and the noise value is 0 dB during operation. Flash based SSDs have low energy consumption and heat generation during operation.