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Digital Electronics

Digital Electronics
1s Complement of 11001010 is

 00110111
 11001001
 00110101
 11001011

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Digital Electronics
When will be the output of an exclusive-OR gate is HIGH ?

 All inputs are LOW
 All inputs are HIGH
 The inputs are different
 The inputs are equal

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Digital Electronics
The NOR-NOR realization is equivalent to

 OR-NOT realization
 OR-AND realization
 AND-OR realization
 NOT-AND realization

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Digital Electronics
A system has following negative numbers stored in binary form as shown. The wrongly stored number is

 -37 as 11011011
 -89 as 10100111
 -48 as 11101000
 -32 as 11100000

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Digital Electronics
The number of parity bits in a 12-bit Hamming code is

 5
 8
 4
 6

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Digital Electronics
In a read-only memory information can be stored

 at the time of fabrication
 by the user only once during its life time
 by the user a number of times
 in any of the above ways depending upon the type of memory

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