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 (unlike ROM or 'read-only memory' and distinct from EEPROM). The related term RAM (for 'random access memory') means something different; it refers to memory that can access any memory location in a constant amount of time. 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 (unlike ROM or 'read-only memory' and distinct from EEPROM). The related term RAM (for 'random access memory') 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 (for example, read, write, execute) associated with it.