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Digital Electronics

Digital Electronics
Convert the binary number (1111000011110000) to hexadecimal number

 5050
 1010
 F0F0
 7070

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Digital Electronics
The 2s complement of 17 is

 110001.
  101111.
 101110.
 111110.

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Digital Electronics
What logic function is produced by adding an inverter to each input and output of an OR gate?

 NOR
 NAND
 X-OR
 AND

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Digital Electronics
In which code do the successive code characters differ in only one position?

 Hamming code
 Gray code
 XS-3 code
 8421 code

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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

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

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Digital Electronics
Which of the following logic circuits is the fastest ?

 All have same speed.
 TTL.
 DTL.
 RTL.

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