Is there any data in the memory after the computer is powered off?

RAM is a random access memory.

It is the equivalent of removable storage on a PC to store and save data. It can be read and written at any time, and RAM is usually used as a temporary storage medium (known as system memory) for the operating system or other running programs.

However, RAM cannot retain data when the power is off, and if data needs to be saved, it must be written to a long-term memory (e.g. a hard drive). Because of this, RAM is sometimes referred to as "variable memory". RAM memory can be further divided into two categories: static RAM (SRAM) and dynamic memory (DRAM).

DRAM is widely used as the primary memory of the system due to its low unit capacity**.

Absolutely nothing, the memory is not a hard drive. It is an internal memory and must work with electricity.

will be lost. From the underlying hardware:

There are a lot of capacitors in memory, and once the power is off, the charge in the capacitors is quickly released and the data is lost.

Secondary memory (hard disk disk) mainly uses magnetic media to store data, which is relatively inefficient, but can be stored for hundreds of years without relying on power.

No, memory is not permanent memory.

Without. It's common sense.

The information in the RAM will be lost after the power is off, but the data of the ROM will not be lost.

Random Access Memory (RAM), also known as "RAM", is a memory in which the contents of a storage cell can be removed or stored at will as needed, and the speed of access is independent of the location of the storage cell. This type of memory loses its contents when the power is off, so it is mainly used to store programs that are used for a short period of time.

According to the working principle of the storage unit, random access memory is divided into static random access memory (English: static RAM, sram) and dynamic random access memory (English dynamic ram, dram).

ROM is an abbreviation for Read-Only Memory, which is a type of solid-state semiconductor memory that can only read out previously stored data. It is characterized by the fact that once the information is stored, it cannot be changed or deleted. It is usually used in electronic or computer systems that do not require frequent data changes, and the data does not disappear due to power off.

Types of ROMs:

Read-only memory is a type of memory that can only read data. In the manufacturing process, the data is burned into the circuit with a special mask, and the content of the data cannot be changed after it is written, so it is sometimes called "mask ROM".

There is a determinant fuse inside the programmable ROM (PROM) of a programmable program, which needs to be burned off by an electric current and write the required data, but it can only be written once. When the PROM leaves the factory, the stored content is all 1, and the user can write some of the units into the data 0 as needed to achieve the purpose of "programming" it.

Erasable Programmable Read Only Memory (EPROM) can use high voltage to program and write data, and when erasing, the line is exposed to ultraviolet light, so that the data can be emptied and reused. A quartz transparent window is usually reserved on the package housing for convenience**.

The writing principle of One Time Programmable Read Only Memory (OTPROM) is the same as that of EPROM, but in order to save costs, it is not erased after programming and writing, so no transparent window is set.

Electrically Erasable Programmable Read Only Memory (EEPROM) works similarly to EPROM, but erases using a high electric field, so there is no need for a transparent window.

Yes, because the memory module is RAM (random access memory) and does not save information after power failure.

The landlord should mean to ask how the operating system is installed.,There will still be problems after the power is off.。

The general software or operating system is based on the hard disk, not on the memory. Hard drives can be powered off to save data, so a system or software will store it for a long time.

As for the memory, because the speed of the hard disk is very slow, it is very slow compared to the speed of the CPU, so the faster memory, that is, the memory, is used to interact with the CPU. Therefore, when the computer is working, it reads the program from the hard disk to the memory, and then the CPU interacts with the memory, so even if the memory is powered off, the system will not be lost. It's just that the data in the memory was lost at that time.

By the way, the question should have nothing to do with the laptop, it may be that there is a problem with the MSN server, or the server you are surfing the Internet has set up some shielding, so this problem occurs.

Attach the question of retrospectiveness: Is it possible to set the RAM to retain the data on it (such as system files) or to write it to the ROM?

You understand it this way.,When the program is running,It's all running in RAM.,The ROM belongs to the bootloader at startup.,It's also loaded into RAM when it's booted.。

Don't see what it means? Do you mean memory or msn?

What does Shenma mean? Memory is a piece of hardware. It's just a strip of things.

The system is installed on a hard disk.