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Editor to share with you what rom and ram mean. I hope you will get something after reading this article. Let's discuss it together.

Rom refers to read-only memory, which works in a non-destructive read-out mode and can only read out information that cannot be written. Ram refers to random access memory, also known as main memory, is an internal memory that directly exchanges data with CPU; it can read and write at any time, and it is very fast, and it is usually used as a temporary data storage medium for operating systems or other running programs.

Memory is a device or component used to store a large amount of information in a digital system, and 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).

Rom (read-only memory)

Read-only memory (Read-Only Memory,ROM) operates in a non-destructive readout mode and can only read out information that cannot be written. Once the information is written, it is fixed, and even if the power is cut off, the information will not be lost, so it is also called fixed memory. The data stored in ROM is usually written before loading into the whole machine, and can only be read out during the working process of the whole machine, unlike random access memory (RAM), which can quickly and easily rewrite the storage content. The data stored in ROM is stable, and the data stored after power outage will not change, and the structure is simple and easy to use, so it is often used to store a variety of fixed programs and data.

Different types of read-only memories have different functions except that a few types of read-only memories (such as character generators) are universal. For the convenience of users and mass production, different kinds of programmable read-only memory (PROM), erasable programmable read-only memory (EPROM) and charged erasable programmable read-only memory (EEPROM) are further developed. ROM has a wide range of applications, such as the boot program (operating system) of early personal computers such as Apple II or IBM PC XT/AT, or the Firmware in other microcomputer systems, using ROM hardware.

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

Ram (random access memory)

Random access memory (Random Access Memory, abbreviation: RAM), also known as main memory, is an internal memory that exchanges data directly with CPU. It can be read and written at any time (except when refreshed), is fast, and is usually used as a temporary data storage medium for the operating system or other running programs. RAM can write (store) or read (read) information from any specified address at any time while working. The biggest difference between it and ROM is the volatility of data, that is, the data stored in the event of a power outage will be lost. RAM is used in computers and digital systems to temporarily store programs, data, and intermediate results.

After reading this article, I believe you have a certain understanding of "what do rom and ram mean?" if you want to know more about it, you are welcome to follow the industry information channel. Thank you for your reading!

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