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Digital Electronics

Digital Electronics
The fan put of a 7400 NAND gate is

10TTL
5TTL
2TTL
8TTL

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

 TRAP.
 RST 7.5.
 INTR.
 RST 6.5.

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Digital Electronics
When an input signal 1 is applied to a NOT gate, the output is ___________.

Either 0 & 1
1
None of these

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Digital Electronics
Which of the following operations is commutative but not associative?

 X-OR
 NAND
 OR
 AND

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

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

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Digital Electronics
For a code to be self-complementing, the sum of all its weights must be

 6
 12
 9
 10

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