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Digital Electronics

Digital Electronics
Which one of the following is 2’s complement of -68?

 10111100
 00111100
 01111100
 11000100

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Digital Electronics
What is the radix of octal number system ?

 16
 2
 10
 8

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Digital Electronics
The fast logic family is

  TTL.
  TRL.
  DRL.
  ECL.

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Digital Electronics
(44)8 in BCD 8421 code is

 00110110
 01000100
 00100100
 01100011

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Digital Electronics
Extremely low power dissipation per gate can be gained from

 ECL ICs
 MOS ICs
 CMOS ICs
 TTL ICs

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Digital Electronics
Which of these sets of logic gates are designated as universal gates?

 XOR, NOR, NAND.
 OR, NOT, AND.
 NOR, NAND, XNOR.
 NOR, NAND.

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