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Digital Electronics

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

 NAND
 AND
 NOR
 X-NOR

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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

 octal
 hexadecimal
 ASCII
 natural BCD

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Digital Electronics
Which of the following BCD codes with an odd parity bit included in the end of code group, have error in the code? (I)1001010110000 (II)0100011101100 (III)0111110000011 (IV)1000011000101

 Both (II)&(III)
 Both (I) & (II)
 Only (II)
 Both (I)&(IV)

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Digital Electronics
In which code do the successive code characters differ in only one position?

 Gray code
 XS-3 code
 Hamming code
 8421 code

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Digital Electronics
1 kb represents

 1024 bytes
 100 bytes
 10,000 bytes
 1000 bytes

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

None of these
 the input is LOW
 the input is HIGH and LOW
 the input is HIGH

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