Q. In 8085 microprocessor, in order to enable RST 5.5, RST 6.5 and RST 7.5 interrupts, which of the following instruction are needed?

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Q. A retriggerable one shot is one which

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Q. A(A̅ + B) =

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Q. Consider the Boolean expression X = ABCD + AB̅CD + A̅BCD + A̅CB̅D The simplified form of X is

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Q. In floating point representation the number of bits in exponent is

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Q. Consider the following statements:

1. In the 2's complement representation, negative numbers are stored in sign magnitude form.
2. Taking 2's complement is equivalent to sign change.
3. In a 4 bit complement representation of a binary number A.
4. In the 2's complement representation the most significant bit (MSB) is zero for a positive number.

Of these, the only true statements are

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Q. Without any addition circuitry, an 8:1 MUX can be used to obtain.

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Q. Equation x₁₀ = 11001001₂ when solved for x gives the value of x as

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Q. Nibble is

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Q. The sum S of A and B in a Half Adder can be implemented by using K NAND gates. The value of K is

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Q. When a bit is 0 is a DDR, it makes the corresponding port pin an __________ On the other hand, a 1 bit programs a __________ Pin.

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Q. Which of the following input is not possible in case of a SR flip-flop?

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Q. The advantages of flash memory over EEPROM are

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Q. In a JK flip flop output Q = 1 and it does not change when clock pulse is applied. The possible combination of Jn and Kn is (X denotes don't care)

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Q. VF glows with __________ colour when activated.

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Q. Which are the pending interrupts?

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Q. The logical expression Y = A + A̅B is equivalent to

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Q. A quantization error is an essential aspect of ADC

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Q. Schmitt trigger is used for wave shaping.

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Q. Fundamental mode is another name for

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