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Home Digital Electronics Digital Arithmetic Operations and Circuits Comments

  • Question
  • Adding in binary, a decimal 26 + 27 will produce a sum of:


  • Options
  • A. 111010
  • B. 110110
  • C. 110101
  • D. 101011

  • Correct Answer
  • 110101 


  • Digital Arithmetic Operations and Circuits problems


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    • 1. Solve this binary problem:

    • Options
    • A. 1001
    • B. 0110
    • C. 0111
    • D. 0101
    • Discuss
    • 2. What is the correct output of the adder in the given figure, with the outputs in the order:


    • Options
    • A. 10111
    • B. 11101
    • C. 01101
    • D. 10011
    • Discuss
    • 3. What is the most important operation in binary-coded decimal (BCD) arithmetic?

    • Options
    • A. addition
    • B. subtraction
    • C. multiplication
    • D. division
    • Discuss
    • 4. Using 4-bit adders to create a 1See Section 6-bit adder:

    • Options
    • A. requires 16 adders.
    • B. requires 4 adders.
    • C. requires the carry-out of the less significant adder to be connected to the carry-in of the next significant adder.
    • D. requires 4 adders and the connection of the carry out of the less significant adder to the carry-in of the next significant adder.
    • Discuss
    • 5. How many basic binary subtraction operations are possible?

    • Options
    • A. 4
    • B. 3
    • C. 2
    • D. 1
    • Discuss
    • 6. What is the difference between a full-adder and a half-adder?

    • Options
    • A. Half-adder has a carry-in.
    • B. Full-adder has a carry-in.
    • C. Half-adder does not have a carry-out.
    • D. Full-adder does not have a carry-out.
    • Discuss
    • 7. In VHDL, what is a GENERATE statement?

    • Options
    • A. The start statement of a program
    • B. Not used in VHDL or ADHL
    • C. A way to get the computer to generate a program from a circuit diagram
    • D. A way to tell the compiler to replicate several components
    • Discuss
    • 8. Divide the following binary numbers.

    • Options
    • A. 0000  0010    0000  0010    1000  1111
    • B. 0000  0010    0001  0010    0000  0100
    • C. 0000  0011    0000  0010    0000  0100
    • D. 0000  0010    0000  0010    0000  0100
    • Discuss
    • 9. An 8-bit register may provide storage for two's-complement codes within which decimal range?

    • Options
    • A. +128 to ?128
    • B. ?128 to +127
    • C. +128 to ?127
    • D. +127 to ?127
    • Discuss
    • 10. When multiplying 13 × 11 in binary, what is the third partial product?

    • Options
    • A. 1011
    • B. 00000000
    • C. 100000
    • D. 100001
    • Discuss


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