Exercise: Number Systems And Codes

Questions for: Number Systems And Codes

A decimal fraction can be converted to binary by using the repeated division-by-2 method.
A:
True
B:
False
C:
D:
Answer: B
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A decimal number is converted to BCD by replacing each decimal digit with the appropriate 3-bit binary code.
A:
True
B:
False
C:
D:
Answer: B
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In ASCII code, the hexadecimal sequence 53 54 55 44 45 4E 54 decodes to STUDENT.
A:
True
B:
False
C:
D:
Answer: A
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When using the repeated division by 2 method of converting from decimal to binary, one must write the first remainder as the:
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.
Answer: C
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How many BCD code bits and how many straight binary bits would be required to represent the decimal number 643?
A:
12 BCD, 12 binary
B:
12 BCD, 10 binary
C:
12 BCD, 9 binary
D:
16 BCD, 9 binary
Answer: B
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