COMPUTER HARDWARE
COMPUTER MEMORY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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only when you ask it to
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when needed
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forever
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while the power is off
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Detailed explanation-1: -Persistent storage is any data storage device that retains data after power to that device is shut off. It is also sometimes referred to as non-volatile storage. Magnetic media, such as hard disk drives and tape are common types of persistent storage, as are the various forms of Optical media such as DVD.
Detailed explanation-2: -Non-volatile memory is a term used to describe any memory or storage that is saved regardless of the power to the computer is on or off. The best example of non-volatile memory and storage is a computer hard drive, flash memory, and ROM.
Detailed explanation-3: -But ROM, including flash memory, works by adding a second gate, known as the “floating gate, ‘’ to each cell. As electrons pass through a transistor in the “on” state, some get stuck to the floating gate and remain there to store a 1 indefinitely, with or without power.