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Logic Gates
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Question
The switching speed of CMOS is now ________.
Options
A. competitive with TTL
B. three times that of TTL
C. slower than TTL
D. twice that of TTL
Correct Answer
competitive with TTL
More questions
1. Convert the following decimal number to BCD.
469
Options
A. 100101101000
B. 010001101001
C. 100001101001
D. 100101100100
Show Answer
Scratch Pad
Discuss
Correct Answer: 010001101001
2. The voltage levels used to represent binary values (0 and 1) in a digital system are nearly equal in value.
Options
A. True
B. False
Show Answer
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Correct Answer: False
3. Modulus refers to ________.
Options
A. a method used to fabricate decade counter units
B. the modulus of elasticity, or the ability of a circuit to be stretched from one mode to another
C. an input on a counter that is used to set the counter state, such as UP/DOWN
D. the maximum number of states in a counter sequence
Show Answer
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Correct Answer: the maximum number of states in a counter sequence
4. Express the decimal number ?37 as an 8-bit number in sign-magnitude.
Options
A. 10100101
B. 00100101
C. 11011000
D. 11010001
Show Answer
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Discuss
Correct Answer: 10100101
5. The MAX+PLUS II compiler will automatically program a macrocell to borrow up to six product terms from each of three adjacent macrocells in the same LAB.
Options
A. True
B. False
Show Answer
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Correct Answer: False
6. How is odd parity generated differently from even parity?
Options
A. The first output is inverted.
B. The last output is inverted.
Show Answer
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Discuss
Correct Answer: The last output is inverted.
7. Parity systems are defined as either________ or ________ and will add an extra ________ to the digital information being transmitted.
Options
A. positive, negative, byte
B. odd, even, bit
C. upper, lower, digit
D. on, off, decimal
Show Answer
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Correct Answer: odd, even, bit
8. Identify the type of gate below from the equation
Options
A. Ex-NOR gate
B. OR gate
C. Ex-OR gate
D. NAND gate
Show Answer
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Discuss
Correct Answer: Ex-OR gate
9. Convert the following decimal number to octal.
39
Options
A. 63
8
B. 36
8
C. 47
8
D. 74
8
Show Answer
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Correct Answer: 47
8
10. The decimal number 188 is equal to the binary number ________.
Options
A. 10111100
B. 0111000
C. 1100011
D. 1111000
Show Answer
Scratch Pad
Discuss
Correct Answer: 10111100
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