Q. The Boolean expression (A̅ + B) (A + C̅) (B̅ + C̅) simplifies to

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Q. What is the direction of control bus?

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Q. The rate of change of digital signals between High and Low level is

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Q. In a positive-edge-triggered JK flip-flop, a low J and a low K produce __________ state. A high __________ on the rising edge of the clock.

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Q. In which of these does thermionic emission occur?

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Q. In 8085, usually the vector location and the next two memory location contain a JMP instruction. This allows the programs to branch to

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Q. A clock signal coordinates the working of different flip flops.

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Q. Assertion (A): Power drain of CMOS increases with operating frequency

Reason (R): All unused CMOS inputs should be tied either to a fixed voltage level (0 or VDD) or to another input.

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Q. The op amp is used in

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Q. Which of the following is best suited for parity checking and parity generation?

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Q. 39.12₁₀ = __________

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Q. In two level logic, logic race does not occur.

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Q. Typical size of digital IC is about

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Q. A microcomputer has memory locations from 0000 to FFFF, each storing 1 byte. How many bytes can be the memory store?

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Q. A 2 bit binary multiplier can be implemented using

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Q. Assertion (A): Hamming code is commonly used for error correction

Reason (R): In Hamming code the number of parity bits increases as the number of information bits increases.

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Q. As access time is decreased, the cost of memory

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Q. In 8421 Binary coded Decimal system the decimal number 237 is represented by

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Q. The disadvantage of counter type ADC as compared to comparator ADC is that

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Q. A pulse train can be delayed by a finite number of clock periods by using

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