What is a JavaBean really? Simple explanation for a beginner

Hello everyone! I started learning Java and keep coming across the term "JavaBean". I sort of understand that it's some kind of class, but when I read the documentation, it talks about "serializable components with getter/setter methods" and "property containers". Honestly, it sounds like magic. \n\nI have a simple class for storing user data:\n\n```java\npublic class User {\n public String name;\n public int age;\n}\n```\n\nI can create an object and access the fields directly. Why should I write getters and setters? Why implement Serializable? And what are these "beans" anyway? \n\nI've seen that in Java Enterprise Edition and Spring everyone loves these JavaBeans, but I don't understand their advantage. Maybe it's just an outdated concept? Please explain in simple terms what a JavaBean is, why