DBMS Complete Question Bank Notes
1. What is DBMS? Advantages and Disadvantages of DBMS over File System. Difference between DBMS and File System DBMS (Database Management System) is software that allows creation, definition, manipula
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Operating Systems — Complete Notes
BCA Semester 4 | Operating Syste Think of OS as the manager of a company — employees (programs) come in, the manager (OS) assigns desks (memory), schedules tasks, resolves conflicts, and ensures ever
Building Your First MERN App: CRUD, Auth & Zod Validation
Who is this for? If you know a little JavaScript and have heard words like "React", "Node", or "MongoDB" but haven't put them all together yet — this guide is written for you. We'll go slowly, explain
Dart Crash Course for Flutter
What is Dart? it’s coding language to make multi-platform apps. (With flutter framework) it’s a Static typed language. that means the type of a variable is fixed once it’s declared. var name = "piyush"; // Decleared as String name = 12; ...
DevOps from First Principles (Part 2): Inside the SDLC
Context: This piece explores how DevOps naturally emerges at every stage of SDLC (Software Development Life Cycle): from planning and coding to testing, deployment, and operations. Instead of treating DevOps as a separate phase, we’ll see it as a con...
DevOps from First Principles (Part 1): Into DevOps
Context: In this series, we will learn one of the most important skills in the post-2025 tech era — DevOps Because nowadays, cloud computing is used everywhere, and DevOps is the bridge that helps teams build, deploy, and scale applications efficient...
What is System Design ?
What is system design ? → We make system for 100-1000 in prototype part → System design we need when we need to scale Why is popular ? Because every “tech” system is “designed”. Companies make the product that is meant for use is “designed”....
First-Principles Thinking: How to Learn Anything Faster and Deeper
Most people don’t actually learn new things.They copy tutorials, follow checklists, and memorize steps. It works—until something changes. First-principles thinking is the opposite. It’s about breaking any problem down to its most basic truths and reb...
Search and sort
IMPORTANT: bubble sort, quick sort is not in your syllabus dont read. here is the pdf link : https://pdflink.to/search-sort/ 1. Linear Search It is a searching technique that searches sequentially. Time Complexity: O(n) Algorithm: Linear_Searc...