Understanding Network Devices: Modem, Router, Switch, Firewall & Load BalancerIntroduction Have you ever wondered what actually happens when you connect your laptop to Wi-Fi and open a website? The internet does not directly “enter” your computer. Instead, several network devices work together to: Bring the internet into your...Feb 15, 2026·4 min read
Git for Beginners: Basics and Essential CommandsIntroduction Modern software development requires managing changes in code efficiently.Without a proper system, tracking modifications, collaborating with others, and reverting mistakes becomes difficult. Git solves this problem. Git is one of the mo...Feb 14, 2026·4 min read
TCP Working: 3-Way Handshake & Reliable CommunicationIntroduction What would happen if computers sent data to each other without any rules? Messages could arrive out of order Some data could be lost Duplicate packets could appear No one would know if the other side received the data Reliable comm...Feb 14, 2026·4 min read
How DNS Resolution Works: From Root Servers to Your BrowserIntroduction What happens when you type google.com in your browser and press Enter? Your browser does not understand domain names.It understands IP addresses. So how does google.com become something like 142.250.183.14? This translation happens throu...Feb 14, 2026·4 min read
Inside Git: How It Works and the Role of the .git FolderIntroduction Most beginners use Git through commands like: git add git commit git push But very few understand what actually happens internally. To truly understand Git, you must look inside the hidden .git folder. That is where the real magic happe...Feb 14, 2026·4 min read
How a Browser Works: A Beginner-Friendly Guide to Browser InternalsIntroduction What actually happens after you type a URL in the address bar and press Enter? Most people say, “The browser opens the website.”But that answer hides a complex and fascinating process. A browser is not just a website viewer. It is a coll...Feb 14, 2026·4 min read