Solid state drives (SSDs) are faster than hard disk drives (HDDs) for several reasons:
Data access: SSDs use non-volatile memory, which means that data is stored permanently on the drive and does not require power to retain its contents. This allows SSDs to access data much faster than HDDs, which use spinning disks to access data.
Seek time: The time it takes for a HDD to locate a specific piece of data on the spinning disks is called seek time. This can be slow compared to the access time of an SSD, which does not have to physically locate data on a spinning disk.
Transfer speed: SSDs can also transfer data faster than HDDs due to the way they are designed. SSDs use a process called parallelism to read and write data simultaneously from multiple memory chips, while HDDs can only read or write data from a single point at a time.
Durability: SSDs are also more durable than HDDs because they have no moving parts. This makes them less prone to physical damage and failure, and also allows them to operate more quietly.
Overall, the combination of faster data access, lower seek time, and faster transfer speeds make SSDs faster and more efficient than HDDs for many applications.