Tech Blog by Pawan Kumar | SaaS, Web Development & Cloud Solutions

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ML & AI

RAG Explained: Traditional vs Vectorless Retrieval-Augmented Generation

Jan 12, 2026 • 54 min • Pawan Kumar

RAG Retrieval-Augmented Generation AI

Master RAG systems from basics to advanced. Learn how ChatGPT, Perplexity, and enterprise AI use retrieval-augmented generation, plus discover vectorless...

System Design

System Design Fundamentals: Complete Terminology Guide for Beginners

Jan 10, 2026 • 107 min • Pawan Kumar

System Design Terminology Fundamentals

Master every system design term you need to know. From scalability to CAP theorem - your complete reference guide with...

ML & AI

Vector Embeddings: How AI Understands Meaning at Scale

Jan 02, 2026 • 59 min • Pawan Kumar

Vector Embeddings Machine Learning AI

Discover how vector embeddings power modern AI applications. Learn how companies like Google, Netflix, and Spotify use vectors to understand...

DSA

Advanced Trees: The Self-Balancing Structures That Power Modern Databases

Dec 10, 2025 • 13 min • Pawan Kumar

advanced-trees avl-trees red-black-trees

Your database is handling millions of queries per second. Users expect instant results. A single slow query cascades into timeouts,...

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RAG Explained: Traditional vs Vectorless Retrieval-Augmented Generation

System Design Fundamentals: Complete Terminology Guide for Beginners

Vector Embeddings: How AI Understands Meaning at Scale

Advanced Trees: The Self-Balancing Structures That Power Modern Databases

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