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Digital Electronics
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Number Systems and Codes
Comments
Question
Overflow can occur if two signed numbers are added and ________.
Options
A. they have opposite signs
B. they have the same sign
C. both of the above
D. none of the above
Correct Answer
they have the same sign
Number Systems and Codes problems
Search Results
1. The ________ number system has a base of sixteen.
Options
A. Johnson
B. hexadecimal
C. binary
D. octal
Show Answer
Scratch Pad
Discuss
Correct Answer: hexadecimal
2. Hex 4B5258 is ________ in ASCII code.
Options
A. FGM
B. KLM
C. KRX
D. JQW
Show Answer
Scratch Pad
Discuss
Correct Answer: KRX
3. ________ symbols are needed to represent all digits in hexadecimal.
Options
A. Six
B. Ten
C. Twelve
D. Sixteen
Show Answer
Scratch Pad
Discuss
Correct Answer: Sixteen
4. The decimal number ?128 is represented in the signed 2's complement system as ________.
Options
A. 1111 1110
B. 0111 1111
C. 1000 0000
D. 1111 1111
Show Answer
Scratch Pad
Discuss
Correct Answer: 1000 0000
5. Decimal 42 is equivalent to binary ________.
Options
A. 01000010
B. 52
C. 2A
D. 101010
Show Answer
Scratch Pad
Discuss
Correct Answer: 101010
6. Hexadecimal 12 is ________in binary.
Options
A. 00010111
B. 00010100
C. 00010010
D. 00100001
Show Answer
Scratch Pad
Discuss
Correct Answer: 00010010
7. Binary 10111111 is ________ in hexadecimal.
Options
A. BF
16
B. FB
16
C. 277
16
D. 10111111
Show Answer
Scratch Pad
Discuss
Correct Answer: BF
16
8. A typical CD-ROM can store ________ of digital data.
Options
A. 90 minutes
B. analog portions
C. 650 megabytes
D. octal bytes
Show Answer
Scratch Pad
Discuss
Correct Answer: 650 megabytes
9. Odd-parity 9E
16
is ________ decimal.
Options
A. 30
B. 158
C. 78
D. Nothing. Parity does not check.
Show Answer
Scratch Pad
Discuss
Correct Answer: 30
10. The column weight of the "1" in the hexadecimal number 1AB is ________.
Options
A. 64
B. 256
C. 512
D. 1024
Show Answer
Scratch Pad
Discuss
Correct Answer: 256
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