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Digital Electronics
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Number Systems and Codes
Comments
Question
What is the difference between binary coding and binary-coded decimal?
Options
A. BCD is pure binary.
B. Binary coding has a decimal format.
C. BCD has no decimal format.
D. Binary coding is pure binary.
Correct Answer
Binary coding is pure binary.
Number Systems and Codes problems
Search Results
1. Which of the following is an invalid BCD code?
Options
A. 0011
B. 1101
C. 0101
D. 1001
Show Answer
Scratch Pad
Discuss
Correct Answer: 1101
2. When using the repeated division by 2 method of converting from decimal to binary, one must write the first remainder as the:
Options
A. MSB
B. MSB, provided the following sequence of remainders are written in descending order until the final remainder is achieved.
C. LSB
D. LSB, provided the final remainder is used to replace the original LSB, which is then moved to the MSB position.
Show Answer
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Discuss
Correct Answer: MSB
3. Convert the decimal number 151.75 to binary.
Options
A. 10000111.11
B. 11010011.01
C. 00111100.00
D. 10010111.11
Show Answer
Scratch Pad
Discuss
Correct Answer: 10010111.11
4. What is the result when a decimal 5238 is converted to base 16?
Options
A. 327.375
B. 12.166
C. 1388
D. 1476
Show Answer
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Discuss
Correct Answer: 1476
5. The difference of 111 ? 001 equals ________.
Options
A. 100
B. 111
C. 001
D. 110
Show Answer
Scratch Pad
Discuss
Correct Answer: 110
6. Convert the binary number 1100 to Gray code.
Options
A. 0011
B. 1010
C. 1100
D. 1001
Show Answer
Scratch Pad
Discuss
Correct Answer: 1010
7. Convert the following octal number to decimal.
17
8
Options
A. 51
B. 82
C. 57
D. 15
Show Answer
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Discuss
Correct Answer: 15
8. How many BCD code bits and how many straight binary bits would be required to represent the decimal number 643?
Options
A. 12 BCD, 12 binary
B. 12 BCD, 10 binary
C. 12 BCD, 9 binary
D. 16 BCD, 9 binary
Show Answer
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Correct Answer: 12 BCD, 10 binary
9. The octal numbering system:
Options
A. simplifies tasks
B. groups binary numbers in groups of 4
C. saves time
D. simplifies tasks and saves time
Show Answer
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Discuss
Correct Answer: simplifies tasks and saves time
10. Convert 1100101000110101
2
to hexadecimal.
Options
A. 121035
B. CA35
C. 53AC1
D. 530121
Show Answer
Scratch Pad
Discuss
Correct Answer: CA35
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