Solid state device
From Higher Computing Science
- Solid state devices are storage devices that store data without moving parts, by using memory chips that can permanently store values between write operations. USB flash drives and memory cards like SD cards both use solid state storage.
- Solid state storage has the advantage of having no moving parts, which means that it is more reliable in situations where a device will be moved around, such as during exercise or on a vehicle. Many portable devices use solid state memory, such as smartphones, MP3 players and tablets.
- Because Solid State devices have no moving parts (no read or write heads), their access speeds are faster than other storage devices such as hard disc drives.
- Unlike hard Disk Drives (HDD), Solid state devices do not need to be de fragmented.
- Solid State devices tend to be more expensive per GB than other forms of storage due to their increased reliability and access speeds.