What logical operation does an OR gate perform?
The correct answer is A: It produces a 1 at its output if any input is 1. What logical operation does an OR gate perform is that it produces a 1 at its output if any input is 1. OR gate outputs 1 if any input is 1. For amateur radio operators, this is important for digital circuits. Understanding this helps when working with logic gates.
Exam Tip
OR gate operation = produces 1 if any input is 1. Think 'O'R = 'O'ne or more (1 if any input is 1). OR gate outputs 1 if any input is 1. Not produces 0, not some inputs, not all 0 - just 1 if any input is 1.
Memory Aid
"OR gate operation = produces 1 if any input is 1. Think 'O'R = '1' if 'A'ny input. OR gate outputs 1 if any input is 1. Important for digital circuits."
Real-World Application
An OR gate: It produces a 1 at its output if any input is 1. If any input is high, the output is high. This is the operation - 1 if any input is 1.
Key Concepts
Why Other Options Are Wrong
Option B: Incorrect. Producing 0 if all inputs are 1 isn't OR - OR produces 1 if any input is 1. Producing 0 isn't OR.
Option C: Incorrect. Producing 0 if some but not all inputs are 1 isn't OR - OR produces 1 if any input is 1. Producing 0 isn't OR.
Option D: Incorrect. Producing 1 if all inputs are 0 isn't OR - OR produces 1 if any input is 1. All inputs 0 isn't OR.
题目解析
The correct answer is A: It produces a 1 at its output if any input is 1. What logical operation does an OR gate perform is that it produces a 1 at its output if any input is 1. OR gate outputs 1 if any input is 1. For amateur radio operators, this is important for digital circuits. Understanding this helps when working with logic gates.
考试技巧
OR gate operation = produces 1 if any input is 1. Think 'O'R = 'O'ne or more (1 if any input is 1). OR gate outputs 1 if any input is 1. Not produces 0, not some inputs, not all 0 - just 1 if any input is 1.
记忆口诀
OR gate operation = produces 1 if any input is 1. Think 'O'R = '1' if 'A'ny input. OR gate outputs 1 if any input is 1. Important for digital circuits.
实际应用示例
An OR gate: It produces a 1 at its output if any input is 1. If any input is high, the output is high. This is the operation - 1 if any input is 1.
错误选项分析
Option B: Incorrect. Producing 0 if all inputs are 1 isn't OR - OR produces 1 if any input is 1. Producing 0 isn't OR. Option C: Incorrect. Producing 0 if some but not all inputs are 1 isn't OR - OR produces 1 if any input is 1. Producing 0 isn't OR. Option D: Incorrect. Producing 1 if all inputs are 0 isn't OR - OR produces 1 if any input is 1. All inputs 0 isn't OR.
知识点
Logical operation, OR gate, Produces 1, If any input is 1
Verified Content
Question from official FCC Extra Class question pool. Explanation reviewed by licensed amateur radio operators.