A solid-state drive (SSD, also known as a solid-state disk although it contains neither an actual disk nor a drive motor to spin a disk) is a solid-state storage device that uses integrated circuit assemblies as memory to store data persistently. SSD technology primarily uses electronic interfaces compatible with traditional block input/output (I/O) hard disk drives, which permit simple replacements in common applications.[4] Additionally, new I/O interfaces, like SATA Express, have been designed to address specific requirements of the SSD technology.
SSDs have no moving (mechanical) components. This distinguishes them from traditional electromechanical magnetic disks such as hard disk drives (HDDs) or floppy disks, which contain spinning disks and movable read/write heads. Compared with electromechanical disks, SSDs are typically more resistant to physical shock, run silently, have lower access time, and less latency. However, while the price of SSDs has continued to decline over time, consumer-grade SSDs are still roughly eight to nine times more expensive per unit of storage than consumer-grade HDDs.
The difference between hard drives and SSDs are that hard disk drives use magnetic coated platters that spin when they read and give you access to the written information, kind of like a record player. SSDs use stationary flash drives and don’t require any movement whatsoever.
SSDs can access information much more quickly than traditional hard disk drives. Booting your computer up, file copying, saving documents, and opening applications take far less time than before. Since SSDs are built to the same specific sizes as traditional hard disk drives, you don’t need any extra hardware to upgrade to an SSD; simply replace your hard drive with lightning-fast solid state drive. We even have filters that let you search for SSDs made in the same size as your hard disk, so you won’t have to doubt whether your new unit will fit into your laptop or desktop computer.
modern solid-state drive performs much more quickly, but it’s also a more mundane on the inside, as it’s really a hard drive-shaped bundle of NAND flash memory.
Solid-state drives provide an immediate boost to the subjective speed of the computer because they take a big chunk out of the largest amount of latency you experience. Firstly and more obviously, solid-state drives don’t have moving heads and rotating platters; every block is accessible at the same speed as every other block, whether they’re stored right next to each other or in different physical NAND chips. Reading and writing data to and from the solid-state drive is faster as well, so not only does the computer have to wait fewer milliseconds for its requests to be serviced, but the solid-state drive can also effectively read and write data faster. Quicker responses (lower latency) plus faster transfer speeds (more bandwidth) mean that an SSD can move more data faster—its throughput is higher