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Digital Electronics

Digital Electronics
A small circle or dot on top of an IC represents

 Pin2
 Pin1
 Pin13
 Pin14

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Digital Electronics
9’s complement of 52784630 is

 58326479
 57316379
 48225469
 47215369

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an AND gate?

 NAND
 NOR
 OR
 X-OR

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Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NOR gate?

 NAND
 OR
 AND
 X-NOR

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Digital Electronics
Which of the following is known as a mod-2 adder?

 NAND gate
 NOR gate
 X-OR gate
 X-NOR gate

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Digital Electronics
The parity of the binary number 11011001 is

 even
 odd
 not known
 same as the number of zeros

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