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Digital Electronics

Digital Electronics
A bubbled OR gate is equivalent to a

 NAND gate
 NOR gate
 AND gate
 X-OR gate

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an AND gate?

 OR
 NOR
 X-OR
 NAND

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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
120 CPS
None of these
12 CPS

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Digital Electronics
Which of the following is 1’s complement representation of +57

 00000001
 00111001
 01000110
 11000110

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Digital Electronics
The Quine– McClusky method of minimization of a logic expression is a (i) graphical method (ii) algebraic method (iii) tabular method (iv) a computer-oriented algorithm The correct answers are

 (i) and (iii)
 (ii) and (iv)
 (i) and (ii)
 (iii) and (iv)

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Digital Electronics
Transfer of data from one register to another register is known as ________ register operation.

 Inside
 Intra
 In between
 Inter

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