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Digital Electronics

Digital Electronics
A half adder is a ________ circuit.

 None
 Both A and B
 Combinational
 Sequential

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Digital Electronics
A 32 × 10 ROM contains a decoder of size

 32 × 10
 5 × 32
 10 × 32
 32 × 32

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 3
 1
 2
 4

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Digital Electronics
Odd parity of a bit stream can be tested using ________ gate.

 AND
 XOR
 NOR
 OR

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Digital Electronics
Among the logic families, the family which can be used at very high frequency greater than 100 MHz in a 4 bit synchronous counter is

ECL
TTLAS
CMOS
TTLLS

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Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 1 and 3
 0 and 3
 0 and 4
 1 and 4

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