What is Power BI? A Complete Beginner’s Guide to Features, DAX & Uses (2026) If you work with data — or you want to — you’ve probably heard the name Power BI at least once. Maybe your manager mentioned it. Maybe you saw it on a job description. Or maybe you’re just curious about what all the fuss is about. Well, you’re in the right place. In this guide, we’re going to cover everything you need to know about Power BI — what it is, what it does, how to install it, how it compares to Excel, and how to write your first DAX formula. Whether you’re a complete beginner or someone who has used Excel for years, this guide is for you. Let’s get started! What is Power BI? Power BI is a business intelligence and data visualization tool developed by Microsoft. In simple words, it helps you take raw data — from Excel files, databases, websites, or apps — and turn it into beautiful, interactive reports and dashboards Instead of staring at boring rows and columns in a spreadsheet, Power BI lets y...
Getting a job at MANG companies (Meta, Amazon, Netflix, Google) is a dream for many software engineers. These companies offer high salaries, global exposure, and exciting work. But let’s be honest — cracking MANG is not easy , especially if you don’t have a clear roadmap. In this article, I’ll break everything down in a simple and human way so you know exactly what to do . Understand What MANG Companies Look For MANG companies don’t hire based on college name or marks alone. They mainly focus on: Strong problem-solving skills Good understanding of Data Structures & Algorithms Solid computer science fundamentals Ability to write clean and optimized code Clear communication and thinking process So your preparation should match these expectations. Master One Programming Language You don’t need to learn 5 languages. Just one language deeply is enough. Best choices: Java Python C++ JavaScript (less common for DSA, but okay with practice) Focus on: L...