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physical address
In computing, a physical address (also real address, or binary address), is a memory address that is represented in the form of a binary number on the address bus circuitry in order to enable the data bus to access a ''particular'' storage cell of main memory, or a register of memory mapped I/O device.
== Use by central processing unit ==
In a computer supporting virtual memory, the term ''physical address'' is used mostly to differentiate from a ''virtual address''. In particular, in computers utilizing a memory management unit (MMU) to translate memory addresses, the virtual and physical addresses refer to an address before and after translation performed by the MMU, respectively.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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