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Digital Electronics

Digital Electronics
The number of digit 1 present in the binary representation of (3 × 512 + 7 × 64 + 5 × 8 + 3) is

 7
 6
 8
 9

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Digital Electronics
Number of 2 input multiplexers need to construct a 210 inputs multiplexer is _________

 129
 1023
 9
 32

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Digital Electronics
Combinations that are not listed for the input variables are

 Overflow
 Carry
 Don't Care
 Borrow

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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

 16 × 16
 64 × 4
 32 × 8
 256 × 1

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Digital Electronics
(11011) 2 in BCD 8421 code is

 11011001
 00100111
 00011011
 01101100

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

 any number
 1
 2
 4

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