Database schema A schema is the structure or blueprint of a database. Defines how data is organised and how relationships are managed. Types of Schema Physical Schema – How data is stored on disk. Logical Schema – structure of the database (tables, relationships) View Schema – customised views for users. Data Model A data model […]
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Hype Cycle for Emerging Technologies 2025 What is Data Science? Definition: Data science combines math and statistics, specialized programming, advanced analytics, artificial intelligence (AI) and machine learning with specific subject matter expertise to uncover actionable insights hidden in an organization’s data. These insights can be used to guide decision making and strategic planning. Link: What
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One-Dimensional Array Suppose, you need to store student number of 100 students. Will you define 100 variables? int y1, y2,…., y100; An Array is an indexed data structure to represent several variables having the same data type: int y[100]; Array Array in memory Array Length and Capacity Declaring Arrays in Java Processing Arrays We often
What is an Algorithm? An algorithm is simply a set of rules for carrying out some calculation. either manually or on a machine. Example: the most basic algorithms one can think of are those related to addition, subtraction, multiplication and division of numbers. Types of Algorithms: Correct algorithms: Its output is always the correct answer
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There are four main structural components of the computer: Central Processing Unit (CPU) – controlsthe operation of the computer andperforms its data processing functions Main Memory – stores data Input/Output (I/O) – moves data betweenthe computer and its external environment System Interconnection (Bus) – somemechanism that provides forcommunication among CPU, main memory,and I/O The Computer
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Initiation and feasibility Initiation Phase: The first step in an information systems development project. its aims to establish whether the project is feasible and prepare to ensure that the project is successful. Feasibility Study: The activity that occurs at the start of the project to ensure that the project is a viable business preposition. the
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Embarking on a career in Data Science and Artificial Intelligence is an exciting journey—but it can also feel overwhelming. With evolving tools, complex concepts, and fierce competition, it’s essential to have a clear roadmap. Whether you’re a university student or a self-learner, this 3-year success plan will guide you step-by-step from beginner to job-ready. 📅
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Boot the Computer When a computer is powered on, several key processes occur to ensure the hardware is functioning and the system starts correctly. 🧪 POST (Power-On Self-Test) 🔧 Tech Tip: To test POST functionality: 💾 BIOS (Basic Input/Output System) BIOS Responsibilities: 🧠 CMOS (Complementary Metal Oxide Semiconductor) ⚠️ Warning Sign: If system time/date resets
HTML HTML (HyperText Markup Language):HTML is the standard language used to create and design web pages, utilizing tags and attributes to structure content. Brief History of HTML: Getting Started with HTML Development What You’ll Need: Getting Started: Creating Your First HTML Page Opening Your First HTML Page Creating the same HTML page using a different
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Definition and examples A matrix is a rectangular arrangement of numbers organized in rows and columns, typically enclosed in either round or square brackets. Matrix OperationsThere are several operations that can be performed on matrices. In this study, we will focus on the following: TranspositionTo transpose a matrix, each row of the original matrix is
