Microprocessor
The correct sequence of steps in the instruction cycle of a basic computer is

 Read effective address, Decode, Fetch and Execute.
 Fetch, Execute, Decode and Read effective address.
 Fetch, Read effective address, Decode and Execute.
 Fetch, Decode, Read effective address and, Execute.

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Microprocessor
In a vector interrupt

 the branch address is assigned to a fixed location in memory.
 the branch address is obtained from a register in the processor.
 none.
 the interrupting source supplies the branch information to the processor through an interrupt vector.

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