COMPUTER SCIENCE AND ENGINEERING
COMPUTER ARCHITECTURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is not directly connected to the CPU
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It is connected via the primary RAM
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It has an additional secondary data bus
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it makes a copy of the primary storage
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Detailed explanation-1: -Secondary storage (also known as external memory or auxiliary storage) differs from primary storage in that it is not directly accessible by the CPU. The computer usually uses its input/output channels to access secondary storage and transfer the desired data to primary storage.
Detailed explanation-2: -Secondary memory:-CPU does not access these memories directly, rather they are accessed through input-output routines. The data hold in secondary memories are transferred to the main memory, and then the CPU can access that data. For instance, disk, CD-ROM, DVD, etc.
Detailed explanation-3: -The secondary memory is accessed indirectly via input/output operations. It is non-volatile, so permanently stores the data even when the computer is turned off or until this data is overwritten or deleted. The CPU can’t directly access the secondary memory.
Detailed explanation-4: -Secondary storage, sometimes called auxiliary storage, is non-volatile and is used to store data and programs for later retrieval.
Detailed explanation-5: -Hard disk drive, compact disc, USB flash drive are examples of auxiliary storage devices. Auxiliary storage is not directly accessible by the CPU.