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Digital Electronics

Digital Electronics
Which of the following memories uses one transistor and one capacitor as basic memory unit

 DRAM
 None
 Both SRAM and DRAM
 SRAM

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Digital Electronics
The X-OR and X-NOR gates can have how many inputs?

 4
 2
 1
 any number

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Digital Electronics
Which of the following represents (E3)16 ?

 (2BC)16-(1DE)16
 (1CE)16+(A2)16
 (1BC)16-(DE)16
 (200)16-(11D)16

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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 Reduction
State Assignment
State Minimization

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

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Digital Electronics
The number A = 01110000 and B = 10101111 are in 2’s complement form .Addition of above two number is

 00011111
 011100001
 10101111
 11100000

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