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Digital Electronics

Digital Electronics
The largest positive number that can be stored in a computer that has 16-bit word length and uses two’s complement arithmetic is

 32
 65,536
 32,768
 32,767

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Digital Electronics
A NAND gate is called a universal logic element because

All the minization techniques are applicable for optimum NAND gate realization
Many digital computers use NAND gates.
Any logic function can be realized by NAND gates alone
It is used by everybody

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Digital Electronics
The address bus with a ROM of size 1024 × 8 bits is

 16 bits
 12 bits
 8 bits
 10 bits

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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

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

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Digital Electronics
The 2s complement of 17 is

  101111.
 101110.
 111110.
 110001.

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Digital Electronics
The inverter is ___________

AND gate
None of these
NOT gate
OR gate

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