This is the complete B.Tech course on Signals and Systems. The topics covered in the course are as follows. 1. CT and DT signals. 2. Types of CT and DT signals. 3. Classification of CT and DT systems. 4. LTI systems. 5. Impulse response. 6. Convolution sum and convolution integral. 7. Fourier Series representation of periodic signals (CT and DT) and their properties. 8. Continuous Time Fourier Transform and its properties. 9. Frequency response. 10. Discrete Time Fourier Transform (DTFT) and its properties. 11. Laplace Transform and its properties. 12. ROC, pole zero analysis. 13. Transfer function H(s). 14. Z transform and its properties. 15. ROC, pole and zeros. 16. Transfer function H(z). In each class, I will explain the concept and derivations step by step and focus on problem solving. Good understanding of the concepts covered in this course will help the student take up advanced courses like digital signal processing, and information theory. This course will also prepare the student to confidently take up various competitive examinations.