ROM (Read-Only Memory) and RAM (Random Access Memory) are two important types of memory in computers, and their main differences are as follows:
1.How to store data:
ROM: Read-only memory in which the data stored is written during production and cannot be modified by the user. ROMs are mainly used to store fixed system programs and data, such as the basic input-output system (BIOS) when a computer is booted.
RAM: Random Access Memory, where data stored can be read and modified. RAM is mainly used to store running programs and temporary data, and is the main memory when the computer is running.
2.How data is stored:
ROM: The data in the ROM is not lost after a power failure and is non-volatile.
RAM: The data in RAM is volatile because it is lost after a power outage.
3.Speed and **:
ROM: ROMs are generally slower to read, but ** are lower.
RAM: RAM has a very fast read speed, but ** is high.
4.Application Scenarios:
ROM: ROM is mainly used to store fixed system programs and data, such as BIOS, embedded systems, etc.
RAM: RAM is mainly used to store running programs and temporary data, such as operating systems and applications.