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Learn RAILWAY MCQs with answers [Page 1 of Department 87]
(D) does not store information for later retrieval
Correct Answer - Option
(A)
Explanation :
Secondary storage refers to non-volatile storage devices that retain data even when the computer is powered off.
Examples include hard disk drives (HDDs), solid-state drives (SSDs), USB flash drives, and optical discs.
These devices do not require a constant power supply to maintain the stored data, making them suitable for long-term data storage.
Analysis of Other Options:
(B) does not use magnetic media: Incorrect. Many secondary storage devices, such as HDDs and magnetic tapes, use magnetic media to store data.
(C) consists of four main types of devices: Incorrect. Secondary storage encompasses a variety of devices beyond just four types. The number and classification can vary based on context and technological advancements.
(D) does not store information for later retrieval: Incorrect. The primary function of secondary storage is to store data persistently for later retrieval, distinguishing it from primary (volatile) memory.
Therefore, the most accurate statement is: Secondary storage does not require constant power.
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