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Digital Electronics

Digital Electronics
What is the gray code for the binary 101011?

 011111
 101011
 111110
 110101

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Digital Electronics
The AND-OR realization of a combinational circuit requires three 3-input AND gates and one 3-input OR gate. This circuit can be designed using

 four input NAND gates only
None of these
 three 3-input OR gates and one 3-input AND gate
 three 3-input NAND gates and one 3-input NOR gate

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Digital Electronics
2's Complement of 10101011 is

 00111100
 10101011
 10101100
 01010101

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Digital Electronics
Truth table is used to express

 Boolean expression
 Boolean map
 Boolean addition
 Boolean matrix

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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

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

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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
 32,767
 32,768
 65,536

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