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Digital Electronics

Digital Electronics
The parity of the binary number 11011001 is

 not known
 odd
 even
 same as the number of zeros

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Digital Electronics
1’s complement of 17 is

 11100.
  01110.
 10111.
 10001.

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Digital Electronics
Which of the logical operations is represented by the + sign in Boolean algebra ?

 NAND
 NOT
 OR
 AND

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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 1’s complement is used to represent the numbers, then the range will be

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

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Digital Electronics
The decimal equivalent of hexadecimal number “BEED” is

 none
 47,877
 48,777
 48,877

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Digital Electronics
How many entries will be in the truth table of a 3 input NAND gate ?

 3
 6
 9
 8

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