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📘Unit 2- Logic Gates
Logic gates are the basic building blocks of digital circuits. They take one or more binary inputs (0 or 1) and produce a single binary output based on a specific logic rule. Microprocessors and all digital devices use logic gates to make decisions and process data.
In Lesson 2, students learn about the three fundamental logic gates:
AND, OR, and NOT. These are called basic gates because all other complex gates can be formed using them.
The lesson explains how each gate works:
The AND gate gives output 1 only when all inputs are 1.
The OR gate gives output 1 if at least one input is 1.
The NOT gate inverts the input—0 becomes 1, and 1 becomes 0.
Students also study universal gates like NAND and NOR, which can be used to build any other gate. They learn about truth tables, diagrams that show all possible input combinations and their corresponding outputs.
This chapter helps students understand the logic behind all digital systems, preparing them to design simple circuits and understand how microprocessors make logical decisions.
