October 2019
Beginner
426 pages
10h 44m
English
The SSD (see Figure 9.13) is another storage technology that is considered to be secondary storage. Unlike HDDs, SSDs are memory chips with no moving parts. They use less voltage (usually 5V) than HDDs (12V for spinning the platters), are noiseless, more physically reliable, and provide faster data access. SSDs are behind HDDs in terms of capacity. However, based on current development trends in storage technologies, things might turn in favor of SSDs over HDDs. These days, many manufacturers offer their PCs and laptops with SSD disks that contain the OS and applications, as well as HDD disks to be used for data storage. Additionally, SSD drives are also encountered on servers, including NAS and SAN devices too:
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