Two's Complement Overflow
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Questions and Answers

Which bit is the carry/borrow bit in two's complement?

  • The third bit
  • The fifth bit (correct)
  • The second bit
  • The fourth bit

    • What is the range of numbers that can be represented in a 4-bit two's complement?

  • -8 to +7 (correct)
  • -8 to +8
  • -7 to +7
  • -7 to +8

    • When does overflow occur in two's complement?

  • When the carry/borrow bit is set
  • When subtracting two numbers with the same sign
  • When adding two numbers with different signs
  • When the number being represented is out of the range of representation (correct)

    • What is the result of the subtraction 2-1 in a 4-bit two's complement?

    <p>+1</p> Signup and view all the answers

    When do overflows occur in two's complement addition?

    <p>When adding two numbers with the same sign</p> Signup and view all the answers

    What is the purpose of the fifth bit in two's complement representation?

    <p>To indicate the sign of the number</p> Signup and view all the answers

    What is the range of numbers that can be represented in a 4-bit two's complement?

    <p>-8 to +7</p> Signup and view all the answers

    When does overflow occur in two's complement?

    <p>When the number being represented is out of the range of representation</p> Signup and view all the answers

    What happens when we add a negative and a positive operand in two's complement?

    <p>The result is always within the range of representation</p> Signup and view all the answers

    When do overflows occur in two's complement addition?

    <p>When the operands have the same sign</p> Signup and view all the answers

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