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Digital Electronics

Digital Electronics
Which of these circuits have higher gate complexity 1. Carry look ahead adder 2. Ripple carry adder

 none
 1
 both have same
 2

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Digital Electronics
Which GATE IS CALLED INEQUALITY COMPARATOR?

 4. NOT
 3. XOR
 2. AND
 1. NOR

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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
 1:1
 2:3
 2:1

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Digital Electronics
1s Complement of 11001010 is

 11001011
 11001001
 00110101
 00110111

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Digital Electronics
The process of entering information in EPROM is commonly known as

 storing
None of these
 programming
 writing

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 1. The gate is either

 an AND or an OR
 an OR or an X-OR
 a NAND or a NOR
 an AND or a NOR

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