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what is the definition Hdd & ssd
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rabita prasad

A Hard Disk Drive (HDD) is a type of storage device that uses spinning magnetic disks to read and write data. It has moving parts, with a mechanical arm (called an actuator) that positions a read/write head over the spinning disk to access data. HDDs are widely used for storing large amounts of data at a relatively lower cost compared to other storage types. They are typically slower than SSDs due to the mechanical nature of their operation.

Advantages of HDD:
Lower cost per gigabyte (GB).
Larger storage capacities available (often up to several terabytes).
Disadvantages of HDD:
Slower read/write speeds.
Prone to mechanical failure due to moving parts.
Heavier and consumes more power compared to SSDs.

SSD (Solid-State Drive):
A Solid-State Drive (SSD) is a storage device that uses NAND-based flash memory to store data. Unlike HDDs, SSDs have no moving parts, which makes them faster, more durable, and quieter. SSDs provide quicker access to data, resulting in faster boot times, application launches, and file transfers.

Advantages of SSD:
Faster read/write speeds.
More durable and resistant to physical shock (no moving parts).
Lower power consumption.
Quieter operation.

Disadvantages of SSD:
Higher cost per GB than HDDs (though this has been decreasing).
Smaller storage capacities for the same price (compared to HDDs, especially in the higher-end ranges).