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Digital Electronics

Digital Electronics
1s Complement of 11001010 is

 11001001
 00110101
 11001011
 00110111

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to negative logic system.

 0 V and 5 V
 –1.5 V and – 0.5 V
 1 V and 5 V
 5 V and 0 V

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Digital Electronics
If a counter having 10 flip flops is initially at 0, What count will if hold after 2060 pulses?

  000 000 1100.
 000 000 1110.
  000 000 1000.
 000 001 1100.

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Digital Electronics
1 Gigabyte is equal to

 1024 bits
 1024 kbytes
 1024 Mbytes
 1024 bytes

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Digital Electronics
The NOR gate can function as a NOT gate if

 inputs are left open
 one input is set to 1
 all inputs are connected together
 one input is set to 0

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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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