### Day 46: Combinational Circuits- Adders, Subtractors, Encoder, Decoder, Multiplexer, Demultiplexer

COMBINATIONAL CIRCUITS - Combinational circuits wo digital circuits hote hai jisme current input se hum output lete hain. Isme memory elements ko consider nahi kiya jata hai. Combinational Circuit mein kya output ayegi wo completely depend karti hai uski input values par. Basically the combinational circuits are as follows- Adders Subtractors Encoder Decoder Multiplexer Demultiplexer Combinational circuits ko design karne ke liye there are following steps- Problem ko clearly understand karna, Then, input and output variables ko find out karna, konsi input value hai and konsi output value hai. Then, input and output variables ko letters or symbols ki form mein assign karna. I/O symbols ko represent karne ke liye Truth Table create karna. Then, is truth table se boolean functions ko find karna. Ab boolean expressions ko solve karna with the help of K-Maps, or Boolean Algebra theorems. Then, finally draw diagram for the result. 1. ADDERS - Adders means jab hum 2 binary numbers ko add k