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Which of the following is built exclusively from NOR gate?(a) Plant guard machine(b) Apollo Guidance Computer(c) Street market app(d) Dish washerI have been asked this question in a national level competition.I'd like to ask this question from Boolean Algebra in section Boolean Algebra and Modeling Computations of Discrete Mathematics

Answer»

The CORRECT choice is (b) Apollo GUIDANCE Computer

Easiest explanation: The first embedded system is the Apollo Guidance Computer which was built EXCLUSIVELY from NOR gates. A LOGICALLY inverted OR gate is a NOR gate and it can have two or more inputs.



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