RAM is volatile and used for both read and write. ROM is non-volatile and only used for reading. Memory on the RAM is erased when the computer is switched off. Both Random-Access Memory (RAM) and Read-Only Memory (ROM) are primary storage devices. RAM is a part of hardware that stores operating system’s application programs and currently running processes. ROM, on the other hand, stores critical programs which are used for the basic computer commands, such as start-up. Both types of memory allow random access, so in order to be precise, RAM should be referred to as read/write RAM and ROM as read-only RAM.
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