Digital Electronics - ECE Questions and Answers

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A typical microcomputer has 65, 536 registers in its memory. It will be specified as

65.536 memory

65.536 K memory

64 K memory

8 K memory

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A function table is required in very large numbers the memory most switched for this purpose would be

ROM

PROM

EPROM

EAROM

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What kind of signal does the times produce?

Single pulse

Square wave

Continuous pulse

No signal

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Assertion (A): A presettable counter can be preset to any desired starting point

Reason (R): The maximum frequency of a ripple counter depends on the modulus.

Both A and R are correct and R is correct explanation of A

Both A and R are correct but R is not correct explanation of A

A is true, R is false

A is false, R is true

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A digital clock uses __________ chip

SSI

LSI

VLSI

MSI

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The contents of stack location 2109 H after the call operation will be

00001111

01010101

00100000

00100010

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Which of the following conversion is incorrect?

111110111₂ = 767₈

11011010₃ = 665₈

1011.1111₂ = 13.74₈

10101.11₂ = 26.5₈

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In a flip-flop with RS latch a high S and a low R set the output to __________ and a low S and a high R set the output __________ .

low, low

high, high

low, high

high, low

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For the logic circuit shown in figure, the simplified Boolean expression for the output Y is

A + B + C