Non-volatile memory, nonvolatile memory, NVM or non-volatile storage, is computer memory that can retain the stored information even when not powered. Examples of non-volatile memory include read-only memory, flash memory, most types of magnetic computer storage devices (e.g. hard disks, floppy disk drives, and magnetic tape), optical disc drives, and early computer storage methods such as paper tape and punch cards.
Non-volatile memory is typically used for the task of secondary storage, or long-term persistent storage. The most widely used form of primary storage today is a volatile form of random access memory (RAM), meaning that when the computer is shut down, anything contained in RAM is lost. Unfortunately, most forms of non-volatile memory have limitations that make them unsuitable for use as primary storage. Typically, non-volatile memory either costs more or performs worse than volatile random access memory.
'''Volatile memory''', also known as '''volatile storage or primary storage device''', is [[computer memory]] that requires power to maintain the stored information, unlike [[non-volatile memory]] which does not require a maintained power supply.
Most forms of modern [[random access memory]] are volatile storage, including [[dynamic random access memory]] and [[static random access memory]]. [[Content addressable memory]] and [[dual-ported RAM]] are usually implemented using volatile storage. Early volatile storage technologies include [[delay line memory]] and [[Williams tube]].
RAM=Volatile memory
ROM=NON-Volatile memory
1. What is the difference in volatile and nonvolatile memory?
Non-volatile. It retains its memory even if power is removed.
Volatile memory is temporary. Non-volatile is used for storing information after the the computer is shut down.
Volatile memory loses its stored data when power is lost, while nonvolatile memory retains its stored data even without power. Examples of volatile memory include RAM, while nonvolatile memory includes hard drives and SSDs.
Modern Computers have both volatile memory - RAM and non-volatile memory - Hard Disk
yes, and nonvolatile does not
Non-volatile memory can retain its contents through a loss of power, assuming the shutdown was properly performed.
Nonvolatile memory retains data even when power is cut off, like in ROM chips. Nonvolatile storage devices can be slower than volatile ones as they often use technologies such as flash memory. This type of memory is commonly used in devices like USB drives and solid-state drives.
A flash memory chip is a close relative to EEPROM, it differs in that it can erase one block or page at a time. Therefore flash memory is a non volatile memory.
Volatile memory refers to memory that loses its state upon losing power. Computer RAM is volatile. Compare to nonvolatile memory (Hard disk drives, USB NAND flash storage devices, CD and DVD optical media, floppy media)
The primary difference if the permanence of the data held in the memory. When talking about volatile and nonvolatile memory in the context of computers, we're usually referring to RAM(volatile) and the hard drive(nonvolatile). Volatile means that the memory must be receiving power in order to hold its contents. RAM must be fed power or the data on the RAM will be lost. A hard drive is nonvolatile, meaning it does not need power to keep data stored on it. This is why you install programs and photos etc to the hard drive. If you put them on RAM, it would disappear every time you turned off the PC!
volatile memory: The data is lost on reboot. This is the ram memory. Random-access-memory.non-volatile memory: The data is saved to a hard drive or flash drive, or it could be a hard coded chip. This is ROM memory. Read-only-memory.Volatile memory: you will lost all of your data when your electricity go out. Ram is volatile memory. When you shutdown your computer. Info that haven't saved is destroyed.Nonvolatile memory: All data that stored in this type of memory wil retain when you shutdown your computer. Rom is of type nonvolatile memory.Non-volatile holds its data even when the power is turned off.Volatile memory: you will lost all of your data when your electricity go out. Ram is volatile memory. When you shutdown your computer. Info that haven't saved is destroyed.Nonvolatile memory: All data that stored in this type of memory wil retain when you shutdown your computer. Rom is of type nonvolatile memory.