Apache Hadoop is a computer program that helps to store and manage big data. Imagine you have a toy box with lots of toys inside. When you play with the toys, you put them back in the box in no particular order. Over time, the box becomes so full of toys that it's hard to find the one you want to play with next. This is how big data can be if you don't have a system to organize it.
Hadoop acts like a big toy box with many compartments. When you store your data in Hadoop, it's like you're putting your toys in different compartments so that you can find them easily later. You can also add more compartments whenever you need to store more data.
But Hadoop isn't just a simple toy box. It's more like a toy box that works with many other toy boxes to organize all the toys in the world. This means that even if you have more toys than one box can hold, you can add more boxes and still find your toys easily. When you use Hadoop, you can store your data in many different boxes connected together, so you can access them quickly.
Overall, Apache Hadoop is a program that helps make sense of big data by organizing it into manageable pieces, making it easier to store, retrieve, and analyze. It ensures that you never lose track of your toys and always know where they are when you need them.