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Digital Electronics

Digital Electronics
The main equation for a D flip flop is

 Q=D
 Q=D'
 Q=1
 Q=0

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Digital Electronics
A group of four bits is known as

 Bit
 Byte
 Nibble
 Word

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 AND
 NOT
 OR
 NAND

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Digital Electronics
Which of the following is 1’s complement representation of +57

 11000110
 00000001
 01000110
 00111001

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

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Digital Electronics
In Boolean algebra AND is represented by

 ×
 +
 /
 -

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