COMPUTER ARCHITECTURE
SECONDARY STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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lower cost, higher capacity, backup disk
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higher cost, low capacity
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save data, backup
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low cost, save data
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Detailed explanation-1: -Secondary storage provides a lower-cost, higher-capacity storage tier than primary storage, although the stored data might not be as immediately accessible. This tradeoff is worthwhile in some cases, such as when implementing a backup disk appliance or cloud-based backup service.
Detailed explanation-2: -Secondary storage is needed to keep programs and data indefinitely. Secondary storage is non-volatile, long-term storage. It is used to keep programs and data indefinitely. Without secondary storage all programs and data would be lost the moment the computer is switched off.
Detailed explanation-3: -Secondary storage is needed to keep programs and data long term. 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.
Detailed explanation-4: -Aside from offering greater data retention, secondary storage is usually twice as cheap compared to its primary counterpart. It can also store significantly more information. An 8GB stick of RAM is a decent size, while new computers generally have 1TB hard drives. There is no comparison on capacity.