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📘Unit 4- Binary Arithmetic and Combinational Logic
Class 10 Computer Science – Lesson 4: Binary Arithmetic and Combinational Logic
Binary arithmetic is the method of doing mathematical operations using only two digits: 0 and 1. Since computers and microprocessors work in binary, all calculations inside a digital system are performed with binary numbers. This lesson explains binary addition, subtraction, multiplication, and division, along with rules for carrying and borrowing. Students also learn about 1’s complement and 2’s complement methods for representing negative numbers and performing subtraction.
The chapter also introduces combinational logic, which refers to digital circuits whose output depends only on the present input values. These circuits do not use memory. Examples of combinational circuits include adders, subtractors, multiplexers, demultiplexers, encoders, and decoders. Students learn how these circuits are formed using logic gates and how they help perform arithmetic and decision-making functions in microprocessors.
This lesson helps students understand how computers handle arithmetic operations and how different logic circuits work together to process information.
