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Digital Electronics

Digital Electronics
Maximum number in decimal that can be represented by 4 bits (binary) is

 4
 15
 7
 16

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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 .

 250 Hz.
 500 Hz.
  1 KHz.
 2 KHz.

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Digital Electronics
A ROM has a 16-bit address bus. The number of locations in this memory is

 65536
 32
 1024
 16

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Digital Electronics
If a Hexadecimal number needs to convert to binary. For each hexadecimal digit, there will be how many bits

 4
 1
 8
 2

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Digital Electronics
The most suitable gate to check whether the number of 1s in a digital word is even or odd is

 AND, OR, and NOT
 X-OR
 NAND
 NOR

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Digital Electronics
Which of the following is a self-complementing code?

 Gray code
 Hamming code
 cyclic code
 XS-3 code

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