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Computer Organization MCQs with Answers on Register Transfer and Micro-operations. Here five MCQ Questions with Answers are added and each question contain four options as possible answer but only one option is the correct answer. Select one and check your answer with the given correct answer.
(6)
The immediate addressing mode of instruction provides the operand in memory location
[A]
Pointed by the PC
[B]
Next to that of OP code
[C]
Pointed by PC+1
[D]
None of these
Comment
Answer: Option [B]
In immediate addressing mode the data is part of the instruction.
(7)
Fetch operations are not required in
[A]
direct addressing
[B]
indirect addressing
[C]
immediate addressing
[D]
register addressing
Comment
Answer: Option [C]
Fetch operations are not required in immediate addressing. Because in immediate addressing the data is part of the instruction.
(8)
The addressing mode used in an instruction of the form ADD X, Y, is
[A]
Absolute
[B]
Immediate
[C]
Indirect
[D]
Index
Comment
Answer: Option [A]
Absolute or direct addressing is used
(9)
The register used as a working area in CPU is
[A]
program counter
[B]
instruction register
[C]
instruction decoder
[D]
accumulator
Comment
Answer: Option [D]
An accumulator is register used in computer's central processing unit in which intermediate arithmetic and logic results are stored.
(10)
The addressing mode used in the instruction PUSH B
[A]
direct
[B]
register
[C]
register indirect
[D]
immediate
Comment
Answer: Option [C]
In register addressing mode the operand is held in memory. The address of the operand location is held in a register which is specified in instruction.
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