Microprocessor
Which one of the following instruction may be used to clear the accumulator content irrespective of its initial value?

 CLR A
 MOV A, 00H
 SUB A
 ORA A

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Microprocessor
Which one of the following is not correct?

 Bus is a group of wires
 An instruction is a set of bits that defines a computer operation
 Bootstrap is a technique or device for loading first instruction
 An interrupt signal is required at the start of every program

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