61. Which are the two basic operations performed in ADCs?
62. In NOR-NOR configuration, the minimum number of NOR gates needed to implement the switching function $${\text{X}} + {\text{X}}\overline {\text{Y}} + {\text{X}}\overline {\text{Y}} {\text{Z}}$$ is:
63. The complement of the Boolean expression $${\text{AB}}\left( {\overline {\text{B}} {\text{C}} + {\text{AC}}} \right)$$
64. For the circuit shown in the figure, the delay of the bubbled NAND gate is 2 ns and that of the counter is assumed to be zero.
If the clock (Clk) frequency is 1 GHz, then the counter behaves as a
If the clock (Clk) frequency is 1 GHz, then the counter behaves as a
65. Which one of the following statements is correct?
66. A 4-bit Johnson counter is initialized to 0101. Every time the state 1011 is reached, the counter is re-initialized to 0000 at the next clock active edge. Again when the state 0001 is reached, the counter is initialized back to 0101 at the next clock active edge. The cycle length of the counter is
67. In JK flip flop, if we input K with the inverted form of what we input J, the resulted flip flop is
68. An 8-bit SISO mode needs . . . . . . . . clock pulses to load an 8-bit number into a register.
69. Considering X and Y as binary variables, the equivalent Boolean expression for Y(X + Y) is
70. Consider the following statements regarding memory:
1. Integrated circuit RAM chips are available in both static and dynamic modes.
2. The dynamic RAM stores the binary information in the form of electric charges that are applied to capacitors.
3. The static RAM is easier to use and has shorter read and write cycles.
4. RAM and ROM chips are not available in a variety of physical sizes.
Which of the above statements are correct?
1. Integrated circuit RAM chips are available in both static and dynamic modes.
2. The dynamic RAM stores the binary information in the form of electric charges that are applied to capacitors.
3. The static RAM is easier to use and has shorter read and write cycles.
4. RAM and ROM chips are not available in a variety of physical sizes.
Which of the above statements are correct?
Read More Section(Digital Electronics)
Each Section contains maximum 100 MCQs question on Digital Electronics. To get more questions visit other sections.