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Digital Electronics

Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NAND gate?

 AND
 NOT
 X-OR
 OR

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Digital Electronics
The complement of a function A is

 1
 Ā
 0
 A

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Digital Electronics
An X-OR gate gives a high output

 for odd decimal value.
 if it has even number of 0s
 if the decimal value of digital word is even
 if there are odd number of 1s

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

 TTL.
 DTL.
 RTL.
 All have same speed.

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Digital Electronics
In decimal number system what is MSD

 Middle digit
 First digit from right to left
 First digit from left to right
 Mean of all digits

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Digital Electronics
X = 01110 and Y = 11001 are two 5-bit binary numbers represented in 2’s complement format. The sum of X and Y in 2’s complement format using 6 bits is

 101001
 0001111
 100111
 001000

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