Understanding Mutable vs Immutable Data Types in PythonThe Whiteboard vs The Notebook Imagine two situations: 🧾 Notebook (Immutable) – If you write something and want to change it, you can’t erase the ink. You must write a new page. 🧑🏫 Whiteboard (Mutable) – You can erase and rewrite on the same boar...Feb 12, 2026·2 min read
Getting Started with cURLcURL Explained Simply A Beginner-Friendly Guide Inspired by “Everything cURL” 1. Before cURL: What Is a Server and Why Do We Talk to It? Every modern application—websites, mobile apps, backend systems—depends on servers. A server is simply: A compu...Jan 26, 2026·4 min read
TCP vs UDP: When to Use What, and How TCP Relates to HTTP1. The Internet Needs Rules to Send Data The internet is essentially millions of computers connected together. When one computer wants to send data to another, there must be rules that define: How to break data into pieces How to send those pieces ...Jan 26, 2026·5 min read
DNS Explained-Clean GuideWhat is DNS? DNS (Domain Name System) is the Internet’s directory service. Humans prefer names.Computers prefer numbers. DNS acts as a translator that converts a hostname (like google.com) into an IP address (like 142.250.192.14) that computers under...Jan 23, 2026·6 min read
How DNS Resolution Works1. What Is DNS and Why Name Resolution Exists Resolvers are described as client-side components that: Query a nameserver Interpret responses Return results to applications The resolver itself is typically a stub resolver, meaning most of the wor...Jan 22, 2026·4 min read
Why Version Control ExistsThe Pendrive Story Every Developer Lived Through Let’s Go Back in Time Before Git…Before GitHub…Before version control… Developers worked like this: Using pendrives, emails, and messy folders Let me tell you a story. The Pendrive Analogy (Very Impo...Jan 17, 2026·3 min read
How Git Works Internally in (.git Folder)Let’s Start With a Simple Story Imagine you have a magic school bag. Inside that bag: Every homework version you ever wrote is saved Nothing is ever lost You can go back to any day and see what you wrote Even if you tear a page, the bag remembers...Jan 17, 2026·4 min read