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Secondary Storage Devices topics include: Sequential and direct access, magnetic tapes, storage devices, magnetic and optical disks.
Secondary storage devices, also known as external memory or auxiliary storage, are used to store noncritical data that doesn't need to be accessed as frequently as data in primary storage.
Secondary storage devices can be implemented using a variety of electronic technologies, like: Flash memory: A compact secondary storage device that connects to a computer via a USB port. It's also known as a pen drive, thumb drive, or jump drive. Optical discs: Cheap, compact, and versatile devices that include CD, DVD, and Blu-ray disks. Magnetic storage devices: Provide a low-cost, high-density storage medium for low-access or slow-access data. Examples include hard disk drives (HDDs) and magnetic tape drives. Solid state storage devices: Use non-volatile random access memory (RAM) to store data indefinitely. Examples include solid state drives (SSDs) and USB memory sticks. Other secondary storage devices include: Floppy disks, Tape drives, Optical media, Disk jukeboxes, RAID.
Secondary storage can be hosted on premises, in data centers, at co-location facilities, or by service providers on their cloud platforms.
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