Home > Common Problem > Can the information lost due to a power outage in the ram be restored after the power is turned on again?

Can the information lost due to a power outage in the ram be restored after the power is turned on again?

(*-*)浩
Release: 2020-01-09 10:52:16
Original
9630 people have browsed it

Can the information lost due to a power outage in the ram be restored after the power is turned on again?

No, RAM is a random read-only memory, and its characteristic is that a power outage will cause the data to disappear.                                                                                                                                                       (Recommended learning: phpstorm)

Random Access Memory (English: Random Access Memory, abbreviation: RAM), also called main memory, is directly exchanged with the CPU Internal memory for data.

It can be read and written at any time (except when refreshing), and it is very fast. It is usually used as a temporary data storage medium for the operating system or other running programs.

When RAM is working, information can be written (stored) or read (retrieved) from any specified address at any time.

The biggest difference between it and ROM is the volatility of data, that is, the stored data will be lost once the power is turned off. RAM is used in computers and digital systems to temporarily store programs, data, and intermediate results.

Memory is a device or component used in digital systems to store large amounts of information. It is an important part of computers and digital devices. Memory can be divided into two categories: random access memory (RAM) and read-only memory (ROM).

Random access memory (RAM) can both store information into and read out information from designated units. Any information stored in RAM will be lost when the power is turned off, so RAM is volatile memory.

ROM is read-only memory. In addition to fixed storage of data, tables, and firmware programs, it is also widely used in combinational logic circuits.

The so-called "random access" refers to when the data in the memory is read or written, the time required and the location of the information or the written

Position independent. In contrast, when reading or writing information in a Sequential Access storage device, the time and location required are related. It is mainly used to store the operating system, various applications, data, etc.

When RAM is working normally, data can be read from RAM or written to RAM. Compared with ROM, RAM has the advantages of easy reading/writing and flexible use. It is especially suitable for situations where data is frequently and quickly changed.

The above is the detailed content of Can the information lost due to a power outage in the ram be restored after the power is turned on again?. For more information, please follow other related articles on the PHP Chinese website!

Related labels:
ram
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template