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Digital Electronics

Digital Electronics
A half adder is a ________ circuit.

 Both A and B
 None
 Combinational
 Sequential

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Digital Electronics
Four ROM chips of 16 × 4 size have their address buses connected together. This system will be of size

 256 × 1
 32 × 8
 64 × 4
 16 × 16

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Digital Electronics
The codes in which each successive code word differs from the preceding one in only one bit position are called

 sequential codes
 self-complementing codes
 BCD codes
 cyclic codes

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Digital Electronics
ASCII and EBCDIC codes are

 alphanumeric codes
 BCD codes
 numeric codes
 error correcting codes

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Digital Electronics
Which mechanism allocates the binary value to the states in order to reduce the cost of the combinational circuits?

State Evaluation
State Minimization
State Reduction
State Assignment

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Digital Electronics
The X-OR and X-NOR gates can have how many inputs?

 1
 any number
 4
 2

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MORE MCQ ON Digital Electronics

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