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Digital Electronics

Digital Electronics
Which of the following is 2’s complement of +12?

 00000011
 00001000
 01110011
 00001100

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Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 NOR
 NAND
 AND, OR, and NOT
 X-OR

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Digital Electronics
Which one of the following is not a vectored interrupt?

 INTR.
 TRAP.
 RST 6.5.
 RST 7.5.

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Digital Electronics
A device which converts decimal number into BCD form is called

 encoder
 code converter
 decoder
 multiplexer

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Digital Electronics
If two numbers in excess-3 code are added and the result is less than 9, then to get equivalent binary

 0011 is subtracted
 0110 is added
 0110 is subtracted
 0011 is added

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Digital Electronics
The boolean algebra is mostly based on

 Boolean theorem
 De Morpans theorem
 De Morgans theorem
 Standard theorem

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