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Question

Which of the following is a universal gate ?

The correct answer is
NAND

Understanding Universal Gates

A universal gate is a fundamental building block in digital electronics. It's a logic gate that allows any other logic gate (like AND, OR, NOT) and consequently any digital circuit to be constructed using only that type of gate.

There are two primary types of universal gates:

  • NAND (Not AND)
  • NOR (Not OR)

Identifying the Universal Gate

The question asks to identify a universal gate from the given options: AND, OR, NAND, and Inverter (NOT gate).

  • AND, OR, and Inverter gates are basic gates, not universal gates.
  • The NAND gate is known to be a universal gate because it's possible to create AND, OR, and NOT logic functions solely by using NAND gates.

Therefore, the NAND gate is the correct answer.

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Important Questions from Miscellaneous

  1. Which of the following scheduler/schedulers is/are also called CPU scheduler ?
    (A). Short Term Scheduler
    (B). Long Term Scheduler
    (C). Medium Term Scheduler
    (D). Asymmetric Scheduler
    Choose the correct answer from the options given below:
  2. A situation where two or more processes are blocked, waiting for resources held by each other is called:
  3. External fragmentation occurs ________.
  4. Which disk scheduling algorithm looks for the track closest to the current head position?
  5. Which CPU scheduling algorithm prefers the process with the shortest burst time?
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