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  • Question
  • How many full and half-adders are required to add 16-bit numbers?


  • Options
  • A. 8 half-adders, 8 full-adders
  • B. 1 half-adders, 15 full-adders
  • C. 16 half-adders, no full-adders
  • D. 4 half-adders, 12 full-adders
  • E. None of the above

  • Correct Answer
  • 1 half-adders, 15 full-adders 


  • Digital Computer Electronics problems


    Search Results


    • 1. Conversion of hexadecimal number 6B216 to it's binary number equivalent is

    • Options
    • A. 11110001101112
    • B. 0110101100102
    • C. 01100110011112
    • D. 111111112
    • E. None of the above
    • Discuss
    • 2. A microprocessor has memory locations from 0000 to 3FFF. Each memory location stores 1 byte. How bytes can the memory store? Express this in kilobytes?

    • Options
    • A. 4,095, 4K
    • B. 16,384, 16K
    • C. 32,740, 32K
    • D. 46,040, 46K
    • E. None of the above
    • Discuss
    • 3. A _____ is a group of devices that store digital data.

    • Options
    • A. circuits
    • B. register
    • C. variations
    • D. bit
    • E. None of the above
    • Discuss
    • 4. Why are digital circuits easier to design than analog circuits?

    • Options
    • A. they do not control electricity precisely over a wide range
    • B. they are made in the form of ICs
    • C. all elements of digital circuit are from the same family
    • D. they are smaller in size
    • E. None of the above
    • Discuss
    • 5. Conversion of an octal number 31378 to it's decimal equivalent is

    • Options
    • A. 163110
    • B. 163210
    • C. 153110
    • D. 193110
    • E. None of the above
    • Discuss
    • 6. Conversion of an octal number 738 to binary number is

    • Options
    • A. 1101112
    • B. 1111002
    • C. 1100102
    • D. 1110112
    • E. None of the above
    • Discuss
    • 7. An odd-parity generator produces an odd-parity bit to go along with the data. The parity of the transmitted data is _____ An XOR gate can test each received word for parity rejecting words with _____ parity.

    • Options
    • A. odd, even
    • B. high, low
    • C. low, high
    • D. even, odd
    • E. None of the above
    • Discuss
    • 8. A half-adder adds _____ bits

    • Options
    • A. 16
    • B. 8
    • C. 10
    • D. 2
    • E. None of the above
    • Discuss
    • 9. The term sum-of-products in boolean algebra means

    • Options
    • A. The AND function of several OR functions
    • B. The OR function of several AND functions
    • C. The OR function of several OR functions
    • D. The AND function of several AND functions
    • E. None of the above
    • Discuss
    • 10. A typical microcomputer may have up to 65,536 registers in its memory. Each of these registers, usually called a _____

    • Options
    • A. address
    • B. memory location
    • C. registers
    • D. chip
    • E. None of the above
    • Discuss


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