Imagine you're building a treehouse with your friends. Everyone needs a way to get in and out, right? That's where Apache HTTP Server comes in.
Apache HTTP Server is like the door to your treehouse. It's a special type of computer program that helps connect people who want to see your treehouse (or website) with the files that make up the website. Without Apache HTTP Server, people wouldn't be able to see your website at all!
When someone wants to visit your website, they type your website's address (URL) into their web browser, like Chrome or Firefox. Their computer sends a message to your server (computer where your website is stored) asking for the website's files. Apache HTTP Server takes care of sending those files back to your visitor's computer so they can see your website.
Apache HTTP Server is really good at handling lots of visitors at the same time. Just like you might have lots of friends coming in and out of your treehouse, websites can have lots of visitors browsing their site at once. Apache HTTP Server can handle all those visitors without breaking a sweat.
So in short, Apache Http Server is a computer program that is like the door to your website, it connects people who want to see your website with the files that make up the website and handles lots of visitors at the same time.