Q. Assertion (A): Divide-64 counter is a Mod-64 counter and divides the input frequency by 64

Reason (R): A Mod 64 counter can be obtained by cascading Mod 16 and Mod 4 counters.

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Q. In 8085 microprocessor, in order to enable INTR interrupt, which of the following instruction are needed?

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Q. The output impedance of a logic pulser is

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Q. In a J-K flip flop the input J = K = 1 pulse is about

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Q. In a four variable Karnaugh map, eight adjacent cells give a

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Q. Binary 1000 multiplied by binary 1000 gives

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Q. 11101₂ x 10001₂ =

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Q. If tp is the pulse width, Δt is the propagation delay, T is period of pulse train then the following condition can avoid the race around condition

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Q. In a Karnaugh map for an expression having 'don't care terms' the don't cares can be treated as

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Q. Which of the following pairs of octal and binary numbers are not equal?

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Q. With a JK master-slave flip-flop the master is clocked when the clock is __________ , and the slave is triggered when the clock is __________ .

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Q. The communicating capacitor reduces turn on time because

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Q. Computer virus is a piece of rough software of unknown origin that

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Q. In a 4 bit full adder how many half adders and OR gates are required

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Q. Which of the following is not a specification of D/A and A/D converters?

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Q. Words having 8 bits are to be stored into computer memory. The number of lines required for writing into memory are

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Q. In 8085, to disable the whole interrupt system (except TRAP)

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Q. The reason for glitches on the outputs of decoding gates on a synchronous counter is

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Q. EEPROM is also known as

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Q. As compared to TTL, CMOS logic has

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