what is ssd

A solid-state drive (SSD) is a type of storage device used in computers that stores data persistently on solid-state flash memory. SSDs replace traditional hard disk drives (HDDs) in computers and perform the same basic functions as a hard drive, but SSDs are significantly faster in comparison. SSDs store data permanently inside an integrated circuit, typically using flash memory, which is much faster than the physical spinning disks and movable read-write heads used in HDDs and floppy disks. SSDs are also more resistant to physical shock, run silently, and have higher input/output rates and lower latency. SSDs use flash memory to read and write data digitally, which is accessed digitally, though SSDs work much faster than HDDs. The biggest difference between an SSD and an HDD is that SSDs have no moving parts, making them faster and more power-efficient than HDDs.