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Digital Electronics

Digital Electronics
(44)8 in BCD 8421 code is

 01000100
 00100100
 00110110
 01100011

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Digital Electronics
Why decoder is used in the digital electronics ?

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

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Digital Electronics
In which of the following codes do the successive characters differ in only 1-bit position?

 cyclic code
 2421 code
 binary code
 8421 code

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Digital Electronics
What is the requirement of fullsubstractor circuit ?

 Three inputs and two outputs
 Two inputs and two outputs
 Three inputs and one output
 Two inputs and three outputs

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

 10 × 32
 5 × 32
 32 × 10
 32 × 32

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Digital Electronics
Which one of the following even parity codes are in errors. (I)100110010 (II)011101010 (III)10111111010001010

 Only (II)
 Both (II)&(III)
 Only (III)
 Both (I)&(III)

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