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Digital Electronics

Digital Electronics
The most suitable gate for comparing two bits is

 X-OR
 AND
 NAND
 OR

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Digital Electronics
The number of 1 in 8-bit representation of 127 in 2’s complement form is m and that in 1,s complement form is n. What is the value of m:n?

 1:2
 2:3
 1:1
 2:1

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Digital Electronics
8421 code is

 alphanumeric code
 non-weighted code
 weighted code
 self-complementing code

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Digital Electronics
ASCII and EBCDIC codes are

 alphanumeric codes
 numeric codes
 error correcting codes
 BCD codes

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

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

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Digital Electronics
A bubbled OR gate is equivalent to a

 X-OR gate
 NAND gate
 AND gate
 NOR gate

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