How is primary storage different from secondary storage?

Primary storage, also known as main memory or RAM, is characterized by its volatile nature, meaning that it loses its stored data when the power is turned off. This type of storage is designed for speed and efficiency, providing quick access to data that the CPU needs for executing processes and running applications. In contrast, secondary storage encompasses devices such as hard drives, SSDs, and optical disks, which retain information even when the power is turned off, making them non-volatile.

This fundamental difference between primary and secondary storage influences how and when each type is used in computing. Primary storage is actively used during the operation of a computer for tasks requiring rapid data retrieval and processing, while secondary storage is utilized for long-term data storage and backup purposes.

The other options highlight aspects that do not accurately define the primary differences between these two storage types, such as the idea that primary storage is used for long-term data retention or that secondary storage is directly accessed by the CPU, which is not typical since the CPU accesses secondary storage through the primary storage.