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Digital Electronics

Digital Electronics
What is the minimum number of NAND gates required to realize an X-OR gate?

 4
 5
 6
 3

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Digital Electronics
Stack is also known as

 LIFO memory
 FIFO memory
 Flash memory
 LILO memory

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Digital Electronics
Why encoder is used in the digital electronics ?

 To convert coded information into non coded form
None of these
 To convert non coded information into coded form
 It is used to separate address bus and data bus

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

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

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

 X-NOR
 AND
 NOR
 NAND

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Digital Electronics
Minimization of logical expressions while designing digital systems helps in reducing

 power requirements
All of these
 cost
 space requirements

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