Digital Electronics-Number Systems and Codes

Digital Electronics-Number Systems and Codes
21. The binary number for octal 458 is ________.
  • 100010
  • 100101
  • 110101
  • 100100
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22. The sum of 11101 + 10111 equals ________.
  • 110011
  • 100001
  • 110100
  • 100100
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23. Convert the following binary number to decimal.
100110102
  • 154
  • 155
  • 153
  • 157
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24. The decimal number 188 is equal to the binary number ________.
  • 10111100
  • 0111000
  • 1100011
  • 1111000
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25. Convert the following binary number to octal.
0011010112
  • 1538
  • 3518
  • 2538
  • 3528
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26. How many bits are in an ASCII character?
  • 16
  • 8
  • 7
  • 4
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27. A binary number's value changes most drastically when the ________ is changed.
  • MSB
  • frequency
  • LSB
  • duty cycle
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28. Convert decimal 213 to binary.
  • 11001101
  • 11010101
  • 01111001
  • 11100011
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29. The decimal number for octal 748 is ________.
  • 74
  • 60
  • 22
  • 62
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30. The sum of the two BCD numbers, 0011 + 0011, is ________.
  • 0110
  • 0111
  • 0011
  • 1100
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Digital Electronics
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