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Digital Electronics

Digital Electronics
A digital circuit that can store on bit is a

 gate
 flip-flop
 XOR gate
 registor

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Digital Electronics
What is the Boolean expression for a two-input AND gate ?

 A + B
 A - B
 A.B
 A & B

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Digital Electronics
In the boolean algebra, a variable has ________ different state(s)/value(s).

 2
 3
 1
 4

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Digital Electronics
Why generic array logic (GAL) device was invented ?

None of these
 Mask programmable
 Reprogrammable
 One-time programmable

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Digital Electronics
The code used in digital systems to represent decimal digits, letters, and other special characters such as + , – , . , * , etc. is

 hexadecimal
 octal
 natural BCD
 ASCII

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 an X-OR or an X-NOR
 a NAND or a NOR
 an OR or a NAND
 an AND or an X-NOR

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