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Digital Electronics

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
Which mechanism allocates the binary value to the states in order to reduce the cost of the combinational circuits?

State Evaluation
State Minimization
State Assignment
State Reduction

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Digital Electronics
Consider the following multiplication: (10w1z) × (15)10 = (y01011001)2 Which one of the following gives appropriate values of w,y and z?

 w = 1,y = 1,z = 0
 w = 0,y = 1,z = 1
 w = 0,y = 0,z = 1
 w = 1,y = 1,z = 1

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Digital Electronics
Boolean algebra is also known as

 Transistor algebra
 Counting algebra
 Switching algebra
 Gate algebra

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Digital Electronics
A 16-square eliminates

 2 variables
 8 variables
 3 variables
 4 variables

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Digital Electronics
A full adder has

 3 inputs, 2 outputs
 3 inputs, 1 output
 2 inputs, 2 outputs
 2 inputs, 1 output

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