URL
Domain: Computer Systems
🎯 Motivation
Uniform Resource Locator - a web address. Contains protocol, domain, path, and parameters.
📋 Concrete Example
URL: https://example.com/articles/python?page=2. Protocol: https. Domain: example.com. Path: /articles/python. Parameter: page=2. Everything needed to find a web resource.
🔗 Analogy
A URL is like a full postal address - protocol (delivery method: airmail), domain (city), path (street and building), parameter (apartment number). Everything needed to find a specific web resource.