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Digital Electronics

Digital Electronics
What logic function is produced by adding inverters to the inputs of an OR gate?

 AND
 NOR
 X-NOR
 NAND

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Digital Electronics
Which of the following logic circuits is the fastest ?

 TTL.
 RTL.
 All have same speed.
 DTL.

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Digital Electronics
A small circle or dot on top of an IC represents

 Pin13
 Pin1
 Pin2
 Pin14

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Digital Electronics
In Boolean algebra A.A is equal to

 1
 A
 2A
 A²

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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

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

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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 0111 1111 0011
 1000 0101 1001 0010
 1100 1011 1111 1001

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