what does rom mean

In computer terminology, ROM refers to "read-only memory". Information has been solidified in the memory and can only be read, but cannot be rewritten. The characteristic of ROM is that the information written into the memory can be stored for a long time and the information will not be lost due to power outage. When the computer is running, it can only read out the information in the read-only memory and cannot write any more information.

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

In computer terminology, ROM refers to "read-only memory".

ROM (read-only memory), translated as "read-only memory"; any unit of the memory can only randomly read information, but cannot write new information, called read-only memory ROM , the information is usually written by the manufacturer under offline or abnormal conditions during manufacturing.

The characteristic of ROM is that the information written into the memory can be stored for a long time and the information will not be lost due to power outage. When the computer is running, it can only read out the information in the read-only memory and cannot write any more information. Generally, read-only memory is used to store fixed programs and data, such as microcomputer monitoring programs, assembly programs, user programs, data tables, etc.

With the development of technology, PROM, EPROM and E2PROM have appeared. Among them, PROM is a programmable ROM and can only be written once; EPROM is an erasable PROM, and its contents can be read and written; E2PROM is an electrically erasable EPROM, which is similar to EPROM and can be read It can also be written to, and there is no need to erase the previous content before writing.

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