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Digital Electronics

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

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

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Digital Electronics
Which is the example of digital device from the given option ?

 Microprocessors
 Record players
 Sensors
 Thermistors

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Digital Electronics
When will be the output of an AND gate is HIGH if there are three inputs, A, B, and C ?

 A = 1, B = 0, C = 1
 A = 1, B = 1, C = 1
 A = 1, B = 1, C = 0
 A = 0, B = 0, C = 0

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Digital Electronics
In signed magnitude representation, the binary equivalent of 22.5625 is (the bit before comma represents the sign)

 1,10110.1001
 0,10110.1011
 0,10110.1001
 1,10101.1001

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Digital Electronics
The simplified block diagram of a 10-bit A/D converter of dual slope integrator type is shown in figure. The 10-bit counter at the output is clocked by a 1 Mhz clock. Assuming negligible timing overhead for the control logic, the maximum frequency of the analog signal that can be converted using this A/D converted is approximately .

 500 Hz.
 2 KHz.
  1 KHz.
 250 Hz.

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Digital Electronics
Storage of 1 KB means the following number of bytes

1024
1064
964
1000

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