04 | Chapter 2: Discrete-Time Systems — Part 1

In this lecture, we introduce discrete-time systems and study their fundamental classifications. Topics covered include: Introduction to discrete-time systems System representation and input-output relationships Classification of discrete-time systems Linear vs. nonlinear systems Superposition principle: additivity and homogeneity Time-invariant vs. time-varying systems Causal vs. noncausal systems Memoryless vs. memory systems Introduction to Linear Time-Invariant (LTI) systems Impulse response and its importance in LTI systems Introduction to discrete-time convolution