What exactly is the difference between a solid state drive and a hard drive and what are the advantages of each?
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SSD's are known for their performance ...and cost. They contain no moving parts unlike an HDD. A standard HDD is much cheaper and has spinning disks as opposed to the solid-state memory of a SSD. The current HDDs on the market can hold much more data for its cost too.
Seagate has released a few products utilizing both technologies, but they also have their flaws. Some of its users have complained about its performance whenever the hybrid drive needs to swap between the two types of storage.
For more on HDDs and SSDs
ssd = solid state (chips), hd = Hard Drive, spinning disk.
ssd advantage = faster, lower power, no moving parts.