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唯讀記憶體
Sign in to saveAlso known as read only memory, R0M, rom
計算機和其他電子設備中使用的非易失性存儲器; 計算機和其他電子設備中使用的一類存儲介質
Read-only memory (ROM) is a type of storage in computers and electronic devices that keeps its data even when powered off, unlike regular memory that loses information when the device shuts down. It's useful because it can permanently hold important instructions and information that devices need to function, without requiring constant power to maintain them.
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Wikidata facts
- Subclass of
- recording medium
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- Commons category
- ROM
- opposite of
- write-only memory
- short name
- ROM
- different from
- computer memory
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
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Article · 中文
唯讀記憶體(英語:Read-Only Memory,缩写:ROM)是一種半導體記憶體,其特點是一旦在其體內儲存了資料就無法再被改寫或刪除,但其儲存過的內容也不會因為電源關閉而丟失。 只读存储器非常适合那些在生命周期中几乎不會被更改的软件,例如电脑和手機的操作系統、CPU和GPU的程序等,这種裝配了重要软件的唯讀記憶體也可叫作“固件”。此外,游戏机等可编程设备的软件也可以通过包含只读存储器的卡带进行分发。ROM除了指代自己,上述的韌體也可被稱為ROM;另外,ROM還可以指快閃記憶體,尽管後者除了“唯读”之外也能夠“刪除”體內資料。 严格来讲,只读存储器指直接硬连接在计算机上的存储器,可擦可编程只读存储器(EPROM)、电可擦可编程只读存储器(EEPROM)形式的半导体存储器可以被擦除和重新编程,但过程通常较慢,而且需要专门的设备,还只能擦写一定的次数。
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