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

is a hardware memory device which denotes the location of the current instruction being executed.
contains the address of the memory location that is to be read from or stored into.
None of these
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
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)
Indicate which, of the following, in not true about an interpreter

Interpreter generates an object program from the source program
Interpreter analyses each source statement every time it is to be executed
None of these
Interpreter is a kind of translator
All of these

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