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Digital Electronics

Digital Electronics
Excess-3 code is known as

Weighted code
Self-complementing code
Algebraic code
Cyclic redundancy code

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

 65536
 16
 1024
 32

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Digital Electronics
The switch which clears a flip-flop is know as

 None
 Both A and B
 Reset
 Clear

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Digital Electronics
A Nibble is equal to ________ bit(s)

 8
 1
 4
 2

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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 .

 2 KHz.
 500 Hz.
 250 Hz.
  1 KHz.

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Digital Electronics
A computer has a word length of 8 bits (including sign). It is required to determine the range of integers that can be stored in the computer. If 2’s complement is used to represent the numbers, then the range will be

 -128 to 128
 -256 to 256
 -128 to 127
 -256 to 255

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