Geethanjali College of Engineering and Technology

These handwritten Design Patterns notes provide a clear, structured, and exam-oriented explanation of all major GoF (Gang of Four) design patterns, specifically curated for Computer Science & Engineering (CSE) and OOAD / Software Engineering courses. The notes cover Creational, Structural, and Behavioral Design Patterns with consistent structure for easy understanding and quick revision. Patterns covered include: Singleton, Factory Method, Abstract Factory, Prototype, Adapter, Bridge, Com...

This document provides a structured overview of cloud computing fundamentals, including application paradigms, ideal and unsuitable workloads, layering techniques, and virtualization concepts. It explains different types of virtualization, hypervisors, performance and security isolation, and hardware features that enable efficient VM operations. It also outlines architectural styles for cloud applications, and offers an in-depth study of the Xen Virtual Machine Monitor, including CPU, memory, ne...

These notes cover BDA (Big Data Analytics) for B.Tech CSE, including Units 1 to 5, written in simple, easy-to-understand language. The document includes: • Complete unit-wise explanations • Clean bullet points & diagrams • Hadoop, HDFS, MapReduce, NoSQL • R Programming basics & functions • Data visualization and Tableau concepts • Important 5-mark and short answers • Assignment questions for all units These notes are re-written in my own words, based on classroom lectu...