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Digital Electronics

Digital Electronics
(11011) 2 in BCD 8421 code is

 01101100
 11011001
 00100111
 00011011

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Digital Electronics
How the digital signals is transmitted through a single conductor ?

 Analog
 Parallel
None of these
 Serial

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Digital Electronics
A three-state buffer has the following output states

 Set, Reset, Halt
 High, Low, Float
 Both A and B
 1, 0, float

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Digital Electronics
An 8 × 4 ROM contains a decoder of size

 3 × 8
 3 × 4
 8 × 8
 8 × 4

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Digital Electronics
In Boolean algebra A.A is equal to

 1
 2A
 A
 A²

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Digital Electronics
What is the minimum number of two-input NAND gates used to perform the function of 2-input OR gate?

 four
 one
 three
 two

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