Title Chapter 4 - Introduction to Database ✅

● Pros: If one server fails, data is still available on the other servers. ● Cons: More complex to manage. 4. Object-Oriented Database ● Stores data in the form of objects instead of tables. ● Example: Used in multimedia applications like online video editing platforms. 5. Open-Source Database ● Free to use and modify. ● Example: MariaDB, PostgreSQL, MongoDB. ● Used by businesses that want a customizable database without extra cost. 6. Cloud Database ● Stored on the internet (cloud) instead of a physical server. ● Examples: Amazon Web Services (AWS), Google Cloud, and Microsoft Azure. ● Pros: Accessible from anywhere, scalable. ● Cons: Requires an internet connection. 7. Data Warehouse Database ● Stores large amounts of historical data for analysis and decision-making. ● Example: Amazon Redshift, Google BigQuery. ● Used by businesses to analyze customer behavior and sales trends. 8. NoSQL Database ● Used for storing large and complex data that doesn’t fit into tables. ● Example: MongoDB, Cassandra. ● Used in big data applications, like social media or real-time messaging apps. 9. Graph Database ● Stores data in a network-like structure (like a web of connections). ● Example: Neo4j. ● Used in social networks, fraud detection, and recommendation systems (e.g., Netflix recommendations). 10. OLTP (Online Transaction Processing) Database ● Used for real-time transactions. ● Examples: Banking systems,and online shopping (Amazon, eBay). ● Ensures data integrity and fast processing. 11. Personal Database ● Used by individuals or small teams. ● Example: Microsoft Access, FileMaker Pro. ● Stores personal records, contacts, and notes. 12. Multimodal Database ● Can handle multiple types of data (text, images, videos). ● Example: Used in content management systems like Adobe Experience Manager.

The Five Main Components of a Database A database is like a well-organized digital filing cabinet, storing and managing information efficiently. To function properly, a database relies on five main components: 1. Hardware – The Foundation Think of hardware as the physical infrastructure of a database system. It includes computers, storage devices, and network equipment. Just like a library needs bookshelves and computers to manage books, a database needs hardware to store and process data. 2. Software – The Brain Software is what makes a database work. It includes the Database Management System (DBMS), the operating system, and applications that allow users to interact with the database. Imagine a librarian using software to search for and organize books in a library. 3. Data – The Core Data is the reason a database exists! It consists of raw facts like names, numbers, and images that become useful when organized. For example, a phonebook stores names and numbers—alone, they may not mean much, but together, they help you find contacts quickly. 4. Procedure – The Rulebook Procedures are the set of rules and instructions that guide users on how to operate a database. Think of them as guidelines for using a self-checkout machine in a store—you follow certain steps to scan items, pay, and complete your purchase. 5. Database Access Language – The Translator This is the language used to communicate with the database. It allows users to retrieve, add, update, or delete data. Just like asking a librarian for a book in a specific section, users write commands to extract information from a database.