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Что (кто) такое Non-Volatile Random Access Memory - определение
RANDOM-ACCESS MEMORY THAT RETAINS ITS INFORMATION WHEN POWER IS TURNED OFF (NON-VOLATILE),IN CONTRAST TO DYNAMIC RANDOM-ACCESS MEMORY (DRAM) AND STATIC RANDOM-ACCESS MEMORY (SRAM), WHICH BOTH MAINTAIN DATA ONLY FOR AS LONG AS POWER IS APPLIED
NV-RAM; Non-volatile RAM; NVRAM; Non-volatile random access memory; NOVRAM; Nvram
Найдено результатов: 6970
Non-volatile random-access memory
Non-volatile random-access memory (NVRAM) is random-access memory that retains data without applied power. This is in contrast to dynamic random-access memory (DRAM) and static random-access memory (SRAM), which both maintain data only for as long as power is applied, or forms of sequential-access memory such as magnetic tape, which cannot be randomly accessed but which retains data indefinitely without electric power.
Non-Volatile Random Access Memory
<storage> (NVRAM) Static random-access memory which is made
into non-volatile storage either by having a battery
permanently connected or by saving its contents to EEPROM
before turning the power off and reloading it when power is
restored.
(1995-04-22)
NVRAM
Non-Volatile Random Access Memory (Reference: RAM, IC)
non-volatile storage
COMPUTER MEMORY THAT CAN RETAIN STORED INFORMATION EVEN WHEN NOT POWERED
Non-volatile storage; Non-volatile; Nonvolatile random access memory; Nonvolatile memory; Parameter RAM; Non-volatility; Nonvolatile RAM; Permanent memory; (NVRAM); Non-volatile computer storage; Parameter random-access memory
<storage> (NVS, persistent storage, memory) A term describing
a storage device whose contents are preserved when its power
is off. Storage using magnetic media (e.g. magnetic disks,
magnetic tape or bubble memory) is normally non-volatile
by nature whereas semiconductor memories (static RAM and
especially dynamic RAM) are normally volatile but can be
made into non-volatile storage by having a (rechargable)
battery permanently connected.
Dynamic RAM is particularly volatile since it looses its
data, even if the power is still on, unless it is refreshed.
An acoustic delay line is a (very old) example of a volatile
storage device.
Other examples of non-volatile storage are EEPROM, CD-ROM,
paper tape and punched cards.
(2000-05-22)
non-volatile memory
COMPUTER MEMORY THAT CAN RETAIN STORED INFORMATION EVEN WHEN NOT POWERED
Non-volatile storage; Non-volatile; Nonvolatile random access memory; Nonvolatile memory; Parameter RAM; Non-volatility; Nonvolatile RAM; Permanent memory; (NVRAM); Non-volatile computer storage; Parameter random-access memory
non-volatile
COMPUTER MEMORY THAT CAN RETAIN STORED INFORMATION EVEN WHEN NOT POWERED
Non-volatile storage; Non-volatile; Nonvolatile random access memory; Nonvolatile memory; Parameter RAM; Non-volatility; Nonvolatile RAM; Permanent memory; (NVRAM); Non-volatile computer storage; Parameter random-access memory
parameter RAM
COMPUTER MEMORY THAT CAN RETAIN STORED INFORMATION EVEN WHEN NOT POWERED
Non-volatile storage; Non-volatile; Nonvolatile random access memory; Nonvolatile memory; Parameter RAM; Non-volatility; Nonvolatile RAM; Permanent memory; (NVRAM); Non-volatile computer storage; Parameter random-access memory
(PRAM) A small memory in a Macintosh with a battery power
supply which stores system parameters (desktop pattern,
selectable memory configuration, etc.) when the computer is
turned off.
(1995-10-08)
shadow ram
![VEB Carl Zeiss Jena]] in 1989](https://commons.wikimedia.org/wiki/Special:FilePath/Bundesarchiv Bild 183-1989-0406-022, VEB Carl Zeiss Jena, 1-Megabit-Chip.jpg?width=200 "VEB Carl Zeiss Jena]] in 1989")
.PNG?width=200 "DRAM Cell (1 Transistor and one capacitor)")
![These IBM [[tabulating machine]]s from the mid-1930s used [[mechanical counter]]s to store information](https://commons.wikimedia.org/wiki/Special:FilePath/Early SSA accounting operations.jpg?width=200 "These IBM [[tabulating machine]]s from the mid-1930s used [[mechanical counter]]s to store information")
![heatsink]]](https://commons.wikimedia.org/wiki/Special:FilePath/Random Access Memory HyperX.jpg?width=200 "heatsink]]")
.svg?width=200 "SRAM Cell (6 Transistors)")
![desktop RAM]].](https://commons.wikimedia.org/wiki/Special:FilePath/Samsung-1GB-DDR2-Laptop-RAM.jpg?width=200 "desktop RAM]].")
![server]]s.](https://commons.wikimedia.org/wiki/Special:FilePath/Swissbit 2GB PC2-5300U-555.jpg?width=200 "server]]s.")
FORM OF COMPUTER DATA STORAGE
R.A.M.; Shadow Random Access Memory; Memory wall; Shadow ram; Shadow RAM; Shadow random access memory; Random-Access Memory; RAM chip; Random Access Memory; RAM (memory); Sigmaquad; Random access memory; Single sided RAM; Single-sided RAM; Single sided random access memory; Single-sided random access memory; RAM memory; Computer RAM memory; RAM; Memory bottleneck; History of random-access memory; RAM IC; RAM stick
random-access memory
FORM OF COMPUTER DATA STORAGE
R.A.M.; Shadow Random Access Memory; Memory wall; Shadow ram; Shadow RAM; Shadow random access memory; Random-Access Memory; RAM chip; Random Access Memory; RAM (memory); Sigmaquad; Random access memory; Single sided RAM; Single-sided RAM; Single sided random access memory; Single-sided random access memory; RAM memory; Computer RAM memory; RAM; Memory bottleneck; History of random-access memory; RAM IC; RAM stick
<storage> (RAM) (Previously "direct-access memory"). A data
storage device for which the order of access to different
locations does not affect the speed of access. This is in
contrast to, say, a magnetic disk, magnetic tape or a
mercury delay line where it is very much quicker to access
data sequentially because accessing a non-sequential location
requires physical movement of the storage medium rather than
just electronic switching.
In the 1970s magnetic core memory was used and some
old-timers still call RAM "core". The most common form of RAM
in use today is semiconductor integrated circuits, which
can be either static random-access memory (SRAM) or {dynamic
random-access memory} (DRAM).
The term "RAM" has gained the additional meaning of
read-write. Most kinds of semiconductor read-only memory
(ROM) are actually "random access" in the above sense but are
never referred to as RAM. Furthermore, memory referred to as
RAM can usually be read and written equally quickly
(approximately), in contrast to the various kinds of
programmable read-only memory. Finally, RAM is usually
volatile though non-volatile random-access memory is also
used.
Interestingly, some DRAM devices are not truly random access
because various kinds of "page mode" or "column mode" mean
that sequential access is faster than random access.
The humorous expansion "Rarely Adequate Memory" refers to the
fact that programs and data always seem to expand to fill the
memory available.
(2007-10-12)
Википедия
Non-volatile random-access memory
Non-volatile random-access memory (NVRAM) is random-access memory that retains data without applied power. This is in contrast to dynamic random-access memory (DRAM) and static random-access memory (SRAM), which both maintain data only for as long as power is applied, or forms of sequential-access memory such as magnetic tape, which cannot be randomly accessed but which retains data indefinitely without electric power.
Read-only memory devices can be used to store system firmware in embedded systems such as an automotive ignition system control or home appliance. They are also used to hold the initial processor instructions required to bootstrap a computer system. Read-write memory can be used to store calibration constants, passwords, or setup information, and may be integrated into a microcontroller.
If the main memory of a computer system were non-volatile, it would greatly reduce the time required to start a system after a power interruption. Current existing types of semiconductor non-volatile memory have limitations in memory size, power consumption, or operating life that make them impractical for main memory. Development is going on for the use of non-volatile memory chips as a system's main memory, as persistent memory. A standard for persistent memory known as NVDIMM-P has been published in 2021.
