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Digital Electronics

Digital Electronics
AND operation of (79)10 & (-56)10 is

 48H
 08H
 42H
 50H

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +2n-1,-2n-1
 +2n-1,-(2n-1+1)
 +(2n-1-1),-(2n-1-1)
 +(2n-1-1),-2n-1

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Digital Electronics
A group of four bits is known as

 Nibble
 Bit
 Word
 Byte

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Digital Electronics
Which of the following codes is known as the 8421 code?

 XS-3 code
 BCD code
 Gray code
 ASCII code

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Digital Electronics
An any or all gate is the other name of

 X-NOR gate
 OR gate
 X-OR gate
 AND gate

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Digital Electronics
If J = K (J and K are shorted) in a JK flip-flop, what circuit is made

 SR flip-flop
 K flip-flop
 T flip-flop
 Shorted JK flip-flop

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