Data stored on secondary storage devices can be directly read by the processor.

Typically, primary storage exhibits greater storage capacity than does secondary storage.

Primary storage usually supports higher access speeds than does secondary storage.

In the case of a hard disk, data is stored along a set of concentric cracks.

In the case of a hard disk, multiple platters are employed.

In the case of a hard disk, individual tracks are divided into sectors.

CD-R storage devices support both read and write operations.

In the case of an optical disk, data is stored on a series of concentric tracks.

In the case of a CD-R storage device, read operations can be performed more rapidly than write operations.

The modern computer employs a hierarchy of storage devices – the configuration being based upon capacity, access speeds, and price per unit of storage capacity.