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Digital Electronics

Digital Electronics
The number FF in base-16 systems will be equal to ________ in binary system.

 10101010
 11101110
 11111111
 10011001

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Digital Electronics
In decimal number system what is MSD

 Middle digit
 Mean of all digits
 First digit from right to left
 First digit from left to right

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

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

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Digital Electronics
8421 code is

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

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Digital Electronics
Why encoder is used in the digital electronics ?

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

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Digital Electronics
The output of a logic gate is 0 when all its inputs are at logic 1. The gate is either

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

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