Operating System (OS)
The Memory Buffer Register (MBR)

contains the address of the memory location that is to be read from or stored into.
is a hardware memory device which denotes the location of the current instruction being executed.
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
None of these
contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".

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Operating System (OS)
A relocate program form is one which

None of these
consists of a program and relevant information for its relocation.
can itself performs the relocation of its address-sensitive portions.
cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.
All of these

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