What does rom mean?

This article mainly introduces what rom refers to. The introduction in the article is very detailed and has certain reference value. Interested friends must read it!

In computer terminology, ROM means "read-only memory" in which information is fixed and can only be read but not rewritten. ROM is characterized by long-term storage of information written in memory, without loss of information due to power failure; computer in the process of operation, can only read the information in the read-only memory, can not write information.

In computer terminology, ROM means "read-only memory."

ROM(read-only memory), translated as "read-only memory"; any unit of memory can only read information randomly, and can not write new information, called read-only memory ROM, its information is usually manufactured by the manufacturer in offline conditions or abnormal conditions written.

ROM is characterized by long-term storage of information written into memory, without loss of information due to power failure. During operation, the computer can only read out the information in the read-only memory and cannot write information again. 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 appeared. PROM is programmable ROM, can only be written once;EPROM is erasable PROM, the contents of which can be read and written; E2PROM is electrically erasable EPROM, similar to EPROM, can be read and written, and before writing operations, do not need to erase the previous contents.

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