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Which of the following statements is/are true?
  • a)
    Parallelism is high in horizontal microprogrammed control unit as compared to vertical microprogrammed control unit.
  • b)
    Hardwired control unit is slower compared to microprogrammed control unit.
  • c)
    In 2’s complement sum carry flag and overflow are the same.
  • d)
    In 2’s complement sum if the sum of two negative numbers yields a positive result, the sum has overflowed.
Correct answer is option 'A,D'. Can you explain this answer?
Verified Answer
Which of the following statements is/are true?a)Parallelism is high in...
Concept:
Option 1: Parallelism is high in the horizontal microprogrammed control unit as compared to a vertical microprogrammed control unit.
True, Parallelism is high in horizontal microprogramming as several operations on different registers can be performed simultaneously.
Option 2: Hardwired control unit is slower compared to the microprogrammed control unit.
False, a Hardwired control unit is faster as compared to the microprogrammed control unit as there won’t be a delay of fetch, decoding, and executing the control instructions in the case of the hardwired control unit.
Option 3: In 2’s complement sum carry flag and overflow are the same.
False, In unsigned numbers, carry out is equivalent to overflow. But in two's complement, carry out tells you nothing about overflow.
Option 4: In 2’s complement sum if the sum of two negative numbers yields a positive result, the sum has overflowed.
True, the Following are the rules for detecting overflow in a two's complement sum:
  • If the sum of two positive numbers yields a negative result, the sum has overflowed.
  • If the sum of two negative numbers yields a positive result, the sum has overflowed.
Otherwise, the sum has not overflowed.
Hence the correct answer is option 1 and option 4.
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Most Upvoted Answer
Which of the following statements is/are true?a)Parallelism is high in...
Concept:
Option 1: Parallelism is high in the horizontal microprogrammed control unit as compared to a vertical microprogrammed control unit.
True, Parallelism is high in horizontal microprogramming as several operations on different registers can be performed simultaneously.
Option 2: Hardwired control unit is slower compared to the microprogrammed control unit.
False, a Hardwired control unit is faster as compared to the microprogrammed control unit as there won’t be a delay of fetch, decoding, and executing the control instructions in the case of the hardwired control unit.
Option 3: In 2’s complement sum carry flag and overflow are the same.
False, In unsigned numbers, carry out is equivalent to overflow. But in two's complement, carry out tells you nothing about overflow.
Option 4: In 2’s complement sum if the sum of two negative numbers yields a positive result, the sum has overflowed.
True, the Following are the rules for detecting overflow in a two's complement sum:
  • If the sum of two positive numbers yields a negative result, the sum has overflowed.
  • If the sum of two negative numbers yields a positive result, the sum has overflowed.
Otherwise, the sum has not overflowed.
Hence the correct answer is option 1 and option 4.
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Which of the following statements is/are true?a)Parallelism is high in horizontal microprogrammed control unit as compared to vertical microprogrammed control unit.b)Hardwired control unit is slower compared to microprogrammed control unit.c)In 2’s complement sum carry flag and overflow are the same.d)In 2’s complement sum if the sum of two negative numbers yields a positive result, the sum has overflowed.Correct answer is option 'A,D'. Can you explain this answer? for Electronics and Communication Engineering (ECE) 2025 is part of Electronics and Communication Engineering (ECE) preparation. The Question and answers have been prepared according to the Electronics and Communication Engineering (ECE) exam syllabus. Information about Which of the following statements is/are true?a)Parallelism is high in horizontal microprogrammed control unit as compared to vertical microprogrammed control unit.b)Hardwired control unit is slower compared to microprogrammed control unit.c)In 2’s complement sum carry flag and overflow are the same.d)In 2’s complement sum if the sum of two negative numbers yields a positive result, the sum has overflowed.Correct answer is option 'A,D'. Can you explain this answer? covers all topics & solutions for Electronics and Communication Engineering (ECE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is/are true?a)Parallelism is high in horizontal microprogrammed control unit as compared to vertical microprogrammed control unit.b)Hardwired control unit is slower compared to microprogrammed control unit.c)In 2’s complement sum carry flag and overflow are the same.d)In 2’s complement sum if the sum of two negative numbers yields a positive result, the sum has overflowed.Correct answer is option 'A,D'. Can you explain this answer?.
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