Short for solid-state drive (or solid-state disk, although it doesn't use a disk mechanism), an SSD is a storage medium that uses non-volatile memory as a means of holding and accessing data. Unlike a hard drive, an SSD has no moving parts which gives it advantages such as faster access time, noiseless operation, higher reliability, and lower power consumption. The picture shows an example of an SSD made by Crucial.
As the costs have come down, SSDs have become suitable replacements for a standard hard drive in both desktop and laptop computers. SSDs are also a great solution for netbooks, nettops, and other applications that don't require a lot of storage.
History of the SSD
The first SSD was implemented in the 1970s and 1980s for use in IBM supercomputers. They have since been drastically improved upon and offer storage capacities of over 2 TB for home computers.
What kind of connection do SSDs utilize?
SSDs primarily use the SATA connection which has a theoretical maximum transfer rate of 750 MB per second. However, a newer generation of SSDs is emerging that utilize a PCIe connection, offering speeds of up to 1.5 GB per second.