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Digital Electronics
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Digital Arithmetic Operations and Circuits
Comments
Question
The binary addition of 1 + 1 = ________.
Options
A. sum = 1
carry = 1
B. sum = 0
carry = 0
C. sum = 1
carry = 0
D. sum = 0
carry = 1
Correct Answer
sum = 0
carry = 1
Digital Arithmetic Operations and Circuits problems
Search Results
1. If [A] = 10 and [B] = 01, then [A]
[b] = ________.
Options
A. [00]
B. 00
C. 11
D. [11]
Show Answer
Scratch Pad
Discuss
Correct Answer: 11
2. The binary subtraction 1 ? 1 = ________.
Options
A. difference = 0
borrow = 0
B. difference = 1
borrow = 0
C. difference = 1
borrow = 1
D. difference = 0
borrow = 1
Show Answer
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Discuss
Correct Answer: difference = 0
borrow = 0
3. A four-bit adder can perform ________.
Options
A. addition
B. subtraction
C. logical AND
D. All of the above
Show Answer
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Discuss
Correct Answer: addition
4. The two's complement of 00001111 is ________.
Options
A. 11111111
B. 11110000
C. 11110001
D. 11110111
Show Answer
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Discuss
Correct Answer: 11110001
5. When decimal numbers with several digits are to be added together using BCD adders ________.
Options
A. a separated BCD adder is required for each digit position
B. the BCD adders must have the carry-outs grounded
C. the BCD's must be grouped in twos
D. full adders are also used
Show Answer
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Discuss
Correct Answer: a separated BCD adder is required for each digit position
6. FC48 ? AB91 = ________.
Options
A. 5B77
B. 5267
C. 50B7
D. 5077
Show Answer
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Discuss
Correct Answer: 50B7
7. When subtracting 6 from 9 using 2's-complement methods, the ________ is 2's complemented before the addition.
Options
A. six
B. multiplier
C. nine
D. two
Show Answer
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Correct Answer: six
8. Packages are used to contain ________ and other information that must be available to all entities in the design file.
Options
A. types
B. vectors
C. components
D. variables
Show Answer
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Discuss
Correct Answer: components
9. Negation is performed by simply performing the ________ operation.
Options
A. 1's-complement
B. sign
C. surrogate
D. 2's-complement
Show Answer
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Discuss
Correct Answer: 2's-complement
10. Subtraction of the 2's-complement system actually involves the operation of ________.
Options
A. multiplication
B. subtraction
C. addition
D. division
Show Answer
Scratch Pad
Discuss
Correct Answer: addition
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