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Digital Electronics

Digital Electronics
A demultiplexer is a

 N-to-1 device
 1-to-1 device
 1-to-N device
 N-to-N device

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Digital Electronics
A self-complementing code for the decimal digits is created using the weight 4 4 3 -2. The value of 8592 in the code is

 1000 0101 1001 0010
 1100 1001 1111 1000
 1100 1011 1111 1001
 1100 0111 1111 0011

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Digital Electronics
X + X.Y = ?

 0
 Y
 1
 X

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Digital Electronics
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.

10 CPS
None of these
12 CPS
120 CPS

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Digital Electronics
An n variable K-map can have

 n2n cells
 n2 cells
 2n cells
  nn cells

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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

 32 × 8
 64 × 4
 16 × 16
 256 × 1

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