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Digital Electronics

Digital Electronics
Which of the following gate is a two-level logic gate

EXCLUSIVE OR gate
NAND gate
OR gate
NOT gate

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Digital Electronics
Which of the following is 1’s complement representation of +57

 11000110
 00111001
 00000001
 01000110

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Digital Electronics
Extended Binary Coded Decimal Interchange Code is an ________ bit code.

 7
 32
 16
 8

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 AND
 OR
 NAND
 NOT

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Digital Electronics
To get an excess-3 code from BCD code

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

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Digital Electronics
The boolean algebra is mostly based on

 De Morgans theorem
 De Morpans theorem
 Boolean theorem
 Standard theorem

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