Will the data stored in the ROM be lost even if the power is turned off?

correct. The information stored in read-only memory (ROM) is fixed once written and will not be lost even if the power is turned off, so it is also called fixed memory. The data stored in ROM is stable and will not change after a power outage. It has a simple structure and is easy to use, so it is often used to store various fixed programs and data.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

Correct; the data stored in the ROM memory will not be lost even after the power is turned off.

Read-Only Memory (ROM) works in a non-destructive readout mode and can only read information but cannot write it. Once the information is written, it is fixed and will not be lost even if the power is turned off, so it is also called fixed memory. The data stored in ROM is usually written before being loaded into the whole machine. It can only be read out during the operation of the whole machine. Unlike random access memory, the stored content can be rewritten quickly and conveniently. The data stored in ROM is stable and will not change after a power outage. It has a simple structure and is easy to use, so it is often used to store various fixed programs and data.

The characteristic of ROM memory is that it can only read information but cannot write information. Usually, a basic input/output system is solidified in the ROM of the computer motherboard, called BIOS (Basic Input Output System). Its main function is to complete the power-on self-test of the system, initialization of each functional module in the system, basic input/output driver of the system and boot operating system.

In computer systems, RAM is generally used as memory, and ROM is generally used as firmware to store some hardware drivers. (If you need basic knowledge related to computer programming, you can refer to the Programming Introduction channel)

Except for a few types of read-only memories (such as character generators) that can be used universally, different types of only The read memory functions are different. In order to facilitate user use and mass production, different types such as programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), and electrified erasable programmable read-only memory (EEPROM) have been further developed. ROM is widely used. The hardware used in the startup program (operating system) of early personal computers such as Apple II or IBM PC XT/AT or the firmware in various other microcomputer systems is ROM.

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