The NAND gate is AND gate followed by ___________.
A. NOT gate
B. OR gate
C. AND gate
D. None of the above
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Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is
A. TTLAS
B. CMOS
C. ECL
D. TTLLS
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In Boolean algebra, the bar sign (-) indicates ___________.
A. OR operation
B. AND operation
C. NOT operation
D. None of the above
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A hexadecimal odometer displays F 52 F. The next reading will be
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The binary code of (21.125)10 is
A. 10101.001
B. 10100.001
C. 10101.010
D. 10100.111
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A NAND gate is called a universal logic element because
A. It is used by everybody
B. Any logic function can be realized by NAND gates alone
C. All the minization techniques are applicable for optimum NAND gate realization
D. Many digital computers use NAND gates.
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NAND. gates are preferred over others because these
A. have lower fabrication area
B. can be used to make any gate
C. consume least electronic power
D. provide maximum density in a chip.
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Which is the correct order of sequence for representing the input values in K-map?
A. (00, 01, 10, 11)
B. (00, 10, 01, 11)
C. (00, 01, 11, 10)
D. (00, 10, 11, 01)
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The inputs of a NAND gate are connected together. The resulting circuit is ___________.
A. OR gate
B. AND gate
C. NOT gate
D. None of the above
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Digital computers are more widely used as compared to analog computers, because they are
A. Less expensive
B. Always more accurate and faster
C. Useful over wider ranges of problem types
D. Easier to maintain
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Consider the representation of six-bit numbers by two’s complement, one’s complement, or by sign and magnitude: In which representation is there overflow from the addition of the integers 011000 and 011000?
A. Two’s complement only
B. Sign and magnitude and one’s complement only
C. Two’s complement and one’s complement only
D. All three representations
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Excess-3 code is known as
A. Weighted code
B. Cyclic redundancy code
C. Self-complementing code
D. Algebraic code
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The number 10000 would appear just immediately after
A. FFFF (hex)
B. 1111 (binary)
C. 7777 (octal)
D. All of the above
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The only function of NOT gate is to ___________.
A. Stop signal
B. Invert input signal
C. Act as a universal gate
D. None of the above
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Which of the following gate is a two-level logic gate
A. OR gate
B. NAND gate
C. EXCLUSIVE OR gate
D. NOT gate
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When an input signal 1 is applied to a NOT gate, the output is ___________.
A. 0
B. 1
C. Either 0 & 1
D. None of the above
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Storage of 1 KB means the following number of bytes
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The decimal number 76 in hexadecimal and BCD number system is respectively
A. C4, 01110110
B. 3E, 00100101
C. 4C, 00101100
D. 4C, 01110110
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Which of the following measurements can be done using a counter?
1. Pulse duration
2. Interval between two pulses
3. Amplitude of the pulse
4. Rise time of a pulse
Select the correct answer from the options given below:
A. 1 and 2
B. 2 and 3
C. 1 and 4
D. 2 and 4
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Match
List-I with
List-II and select the correct answer using the options given below the lists:
List-I (Memory elements)
List-II (Properties)
a. Semiconductor
1. Destructive memory read out
b. Ferrite core memory
2. Combinational logic
c. Magnetic tape memory
3. Non-volatile
A. a-2, b-1, c-3
B. a-1, b-3, c-2
C. a-3, b-2, c-1
D. a-3, b-1, c-2
Select an option to see the answer and solution.