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Digital Electronics

Digital Electronics
(11011) 2 in BCD 8421 code is

 01101100
 00100111
 00011011
 11011001

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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

 natural BCD
 hexadecimal
 ASCII
 octal

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Digital Electronics
The output of a gate is HIGH when at least one of its inputs is LOW. It is true for

 NOR
 NAND
 X-OR
 OR

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 1, B = 1, C = 1
 A = 1, B = 0, C = 1
 A = 1, B = 1, C = 0
 A = 0, B = 0, C = 0

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Digital Electronics
In which of the following codes do the successive characters differ in only 1-bit position?

 2421 code
 binary code
 8421 code
 cyclic code

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

 NAND
 NOR
 X-NOR
 AND

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