System Design #2: Client-Server Architecture Explained
System Design #2: Client-Server Architecture Explained
What actually happens when you open a website, use a mobile application, or log into an online service?
Behind the interface, different components are communicating with each other. One of the most fundamental concepts behind modern software systems is Client-Server Architecture.
In this episode, we break down how clients and servers communicate and how a simple request travels through a system.
We’ll explore:
What is a client?
What is a server?
How requests and responses work
How clients communicate with backend servers
The role of databases
Client-side vs server-side responsibilities
What happens during a login request
How one server can handle multiple clients
What changes when the number of users increases
A basic introduction to stateless architecture
A simple real-world system architecture
We’ll use practical examples from applications such as e-commerce and social media to understand what is happening behind the scenes.
The basic architecture we'll build throughout the video is:
Client → Server → Database
This is one of the building blocks you need to understand before moving into more advanced System Design concepts.
In the upcoming episodes, we’ll build on this foundation and explore HTTP, HTTPS, APIs, REST, load balancing, databases, caching, replication, message queues, microservices, and distributed systems.
This is Part 2 of the System Design series.
The goal isn't to memorize architectures.
The goal is to understand how modern software systems communicate and how to think about them like a system designer.
#SystemDesign #SoftwareEngineering #ComputerScience #BackendDevelopment #ClientServer #WebDevelopment