Microprocessor
An 8-bit microprocessor signifies that

 8-interrupt lines
 8-bit address bus
 8-bit controller
 8-bit data bus

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Microprocessor
In a vector interrupt

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

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