A magnetic disk is an example of secondary memory because it stores data and programs for long-term use. It uses magnetic technology to record and retrieve digital information. Unlike volatile memory, magnetic disk storage retains data even when the computer... Read More
A magnetic disk is an example of secondary memory because it stores data and programs for long-term use. It uses magnetic technology to record and retrieve digital information. Unlike volatile memory, magnetic disk storage retains data even when the computer is switched off.
A hard disk drive (HDD) is a common example of magnetic disk storage. It stores operating systems, software, documents, images, and other files. Its large storage capacity makes it suitable for keeping data that is not currently being processed.
Secondary memory is different from primary memory, such as RAM, which temporarily holds data and instructions needed by the processor. Main memory generally refers to the computer's primary working memory, while a magnetic disk provides separate, long-term storage.
Therefore, Option A, Secondary memory, is correct because magnetic disks preserve stored information for future access rather than serving as the computer's main working memory.
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