Q. Unlimited number of ICs 7490, 78492 and 7493 are available. Which of these could be used to build the dividse-by-60 circuit of figure

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Q. The contents of the program counter after the call operation point to the first instruction on the

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Q. The logic circuit in the given figure realizes the function

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Q. An n bit ADC using Vr as reference has a resolution (in volts) of

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Q. The logic performed by the high-noise immunity logic circuit shown below is

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Q. The contents of the program counter after the call operation will be

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Q. In 8085 microprocessor, an active low signal INTA is not needed from up service which of the following interrupt request?

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Q. For the K map in the given figure, the simplified expression is

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Q. The stack is a specialized temporary __________ access memory during __________ and __________ instructions.

The 8156 of a figure has RAM locations from 2000 H to 20 FFH.

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Q. The counter shown in the given figure is

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Q. The Truth Table shown is for a

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Q. The simplified logic expression for the circuit of the given figure is

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Q. DeMorgan's first theorem is =

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Q. Consider the following digital circuits:

1. Multipliers
2. Read only memories
3. D-latch
4. Circuits as shown in figure

Which of these come under the class of combinational circuit?

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Q. The open wired circuit in the given figure works as a

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Q. The circuit shown below is functionally equivalent to

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Q. The clock shown in figure has a frequency of 6 MHz. The frequency of the Q output will be

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Q. If all bubbles are removed, what are the new RAM locations?

The 8156 of a figure has RAM locations from 2000 H to 20 FFH.

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Q. The logic operations of the two circuits given below are

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Q. A 3 stage Johnson counter (ring) shown in figure is clocked at a constant frequency of fc from the starting state of Q₀ Q₁ Q₂ = 101. The frequency of output Q₀ Q₁ Q₂ will be

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