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Digital Electronics

Digital Electronics
How many bits are required to store one BCD digit ?

 4
 1
 3
 2

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Digital Electronics
8421 code is

 self-complementing code
 non-weighted code
 weighted code
 alphanumeric code

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Digital Electronics
If 4 input MUXes drive a 4 input multiplexer, it results a

 4 input MUX
 6 input MUX
 8 input MUX
 16 input MUX

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Digital Electronics
Which of the following is known as a mod-2 adder?

 X-NOR gate
 X-OR gate
 NAND gate
 NOR gate

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Digital Electronics
Which of these sets of logic gates are designated as universal gates?

 OR, NOT, AND.
 NOR, NAND.
 XOR, NOR, NAND.
 NOR, NAND, XNOR.

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Digital Electronics
Why encoder is used in the digital electronics ?

None of these
 To convert non coded information into coded form
 It is used to separate address bus and data bus
 To convert coded information into non coded form

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MORE MCQ ON Digital Electronics

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