Digital Electronics - ECE Questions and Answers

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Assertion (A): In a BCD to 7 segment decoder the number of outputs active at one time is always the same.

Reason (R): A decoder can be used to interface BCD input to LED display.

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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The number of flags available in 6800 are

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Microprocessors were introduced in the year

1951

1961

1971

1981

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What is the addressing mode used in instruction MOV M, C?

Direct

Indirect

Induced

Immediate

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For the following decimal multiplication the result are given in binary numbers, Spot the incorrect relation, if any

15 x 3 = 11000011₂

42 x 1/12 = 10011.110₂

7.75 x 2.5 = 10011.110₂

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Shift left and shift right operations occur in a calculator.

True

False