Read–write memory
Read–write memory is a type of computer memory that may be relatively easily written to as well as read from, that is, using electrical signalling normally associated with running a software, and without any other physical processes. The related term RAM means something different; it refers to memory that can access any memory location in a constant amount of time.
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 associated with it.
