|Solid State Disk (SSD/SDRAM)|
A solid-state drive (SSD) is a data storage device that uses solid-state memory to store persistent data. An SSD emulates a hard disk drive interface, thus easily replacing it in most applications. An SSD using SRAM or DRAM (instead of flash memory) is often called a RAM-drive, not to be confused with a RAM disk.
The original usage of the term ‘solid-state’ refers to the use of semiconductor devices rather than electron tubes, but in this context, has been adopted to distinguish solid-state electronics from electromechanical devices as well. With no moving parts, solid-state drives are less fragile than hard disks and are also silent and as there are no mechanical delays, they usually enjoy very fast access times and latency.
Computer systems and networks have increased exponentially in both speed and performance throughout the "Digital Age". Conversely, storage device speed - measured by seek time, operations per second , total bandwidth, and other mechanics - have remained relatively stagnant.
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