Secondary storage is needed to keep data indefinitely., An example of a magnetic device is a hard drive., An example of an optical device is a DVD., An example of a solid state device is an SSD., USB Memory sticks are solid state devices., Magnetic devices can hold terabytes (TB) of data., Solid state devices have no moving parts., SD cards use non-volatile RAM., Floppy disks and tape backup are magnetic devices., Optical devices also include CDs and Blu-ray disks.,

Word Sequence Storage Types

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