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Digital Electronics

Digital Electronics
The binary code of (21.125)10 is

10100.111
10101.001
10100.001
10101.01

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Digital Electronics
Which of the following is 2’s complement of +12?

 00001100
 01110011
 00000011
 00001000

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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 .

  1 KHz.
 500 Hz.
 250 Hz.
 2 KHz.

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Digital Electronics
Odd parity of a bit stream can be tested using ________ gate.

 XOR
 AND
 NOR
 OR

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Digital Electronics
In Digital Logic Designs, GAL is abbreviated as

 Generic Array Logic
 General Array Logic
 Generic Advance Logic
 General Advance Logic

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

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

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