Read–write memory
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For read–write file system permissions, see file system permissions.
Read–write memory, or RWM is a type of computer memory that can be easily written to as well as read from using electrical signaling normally associated with running a software, and without any other physical processes. [lower-alpha 1][1] The related storage type RAM means something different; it refers to memory that can access any memory location in a constant amount of time.[2]
The term might also refer to memory locations having both read and write permissions. In modern computer systems using memory segmentation, each segment has a length and set of permissions[lower-alpha 2] associated with it.[3]