Solid state drives are drives that run off of flash memory rather than a hard disk.
If you mean between hard drives and ssd's (solid state drives), then you need to read the wikipedia page on Solid State Drives, it has a comparison of the two technologies.
No
solid state drives
Solid-State Drives (SSD's)?
Sun's Solaris OS using ZFS is designed with solid-state drives in mind and can optimize the file structure for them.
Discs and SSDs Solid State Drives
Solid state drives, or SSD, are storage devices that uses integrated circuit assemblies as memory. Flash drives, compact flash, and MultiMedia cards are examples of solid state storage devices.
False
Solid State Drives, they are hard drives with no moving parts, they could also be compared to there cousins, RAM.
Back when solid-state hard drives were first invented the initial cost was higher per GB or even MB on older hard drives. Now however new technology has enabled the cheaper building of flop circuits, making it a whole lot cheaper and therefore more ethical to build larger capacity hard drives.
Solid State Drives are currently replacing hard drives in most desktop and laptop computers, and have already replaced them completely in tablets, smartphones, and portable media players. Solid state drives use much of the same technology found in USB flash drives and SD cards.