How does NOR work, and how can it be used to build other basic logic gates?
NOR کیسے کام کرتا ہے اور اس سے دوسرے بنیادی منطقی گیٹ کیسے بنائے جا سکتے ہیں؟
Solution & explanation
| A | B | OR | NOR |
|---|---|---|---|
| 0 | 0 | 0 | 1 |
| 0 | 1 | 1 | 0 |
| 1 | 0 | 1 | 0 |
| 1 | 1 | 1 | 0 |
Y = NOT(A OR B), so outputs for 00,01,10,11 are 1,0,0,0. Let A NOR B be written A↓B. NOT A = A↓A. OR = (A↓B)↓(A↓B). AND = (A↓A)↓(B↓B), by De Morgan’s law. Therefore NOR is universal.
Independent study answer. Original textbook ↗ · English-medium printed page 165.