COMPUTER ARCHITECTURE
SECONDARY STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Short term / volatile storage of data directly accessible in main memory by the CPU
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Long term / non-volatile storage of data. Memory not directly accessible by CPU
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Either A or B
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None of the above
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Detailed explanation-1: -Auxiliary memory, also known as auxiliary storage, secondary storage, secondary memory or external memory, is a non-volatile memory (does not lose stored data when the device is powered down) that is not directly accessible by the CPU, because it is not accessed via the input/output channels (it is an external device).
Detailed explanation-2: -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-3: -Secondary storage is non-volatile, long-term storage. Without secondary storage all programs and data would be lost the moment the computer is switched off. There are three main types of secondary storage in a computer system: solid state storage devices, such as USB memory sticks.
Detailed explanation-4: -Secondary Memory or Non Volatile Memory It is an external memory of the computer. It is also known as Auxiliary memory or permanent memory. It is used to store different programs and the information permanently. We call it a non-volatile memory that means the data is stored permanently even if power is switched off.