Questions and Answers
How do SSDs differ from hard disk drives (HDDs)?
SSDs lack physical spinning disks and movable read–write heads
What type of storage device is a solid-state drive (SSD)?
Solid-state storage device
What type of memory is typically used in SSDs?
Flash memory
What is a notable characteristic of SSDs compared to HDDs?
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How is data stored in semiconductor cells in SSDs?
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Study Notes
SSDs vs HDDs
- SSDs (Solid-State Drives) differ from HDDs (Hard Disk Drives) in terms of storage mechanism and performance.
- SSDs store data in interconnected flash memory chips, whereas HDDs use spinning disks and mechanical heads to read and write data.
SSD Characteristics
- A solid-state drive (SSD) is a type of non-volatile storage device that stores data in interconnected flash memory chips.
- SSDs typically use NAND flash memory, which is a type of flash memory that retains data even when power is turned off.
SSD Storage
- Data is stored in semiconductor cells in SSDs, which are made up of transistors and capacitors that can store electrical charges.
- When data is written to an SSD, the transistors control the flow of electrical charges to the capacitors, which then store the data.
Notable Characteristics of SSDs
- A notable characteristic of SSDs compared to HDDs is their faster data access and transfer speed, as they don't require mechanical movement to read and write data.
- SSDs are also more durable and resistant to shock and vibration than HDDs, and they consume less power.
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