Okay, so imagine you have a big toy box full of different toys. But you can only play with one toy at a time because you have to take out all the other toys first. This takes a lot of time and you might get tired of doing it every time you want to play with a different toy.
Now imagine there's a special toy box that has drawers that you can open and close easily. Each drawer has a different toy in it. This makes it much easier to play with different toys whenever you want without having to take everything out first.
Well, that's kind of how a computer works. A computer has lots of different parts, called components, that work together to run programs and do different things. But it would be really slow and take a long time to switch between these parts if they weren't connected in a special way.
That's where the Peripheral Component Interconnect (PCI) comes in. It's like the drawers in the toy box, but for computer parts. The PCI is a way for different parts of the computer, like the graphics card, sound card, or network card, to connect to the main part of the computer, called the motherboard, without having to take everything out first.
The PCI basically makes it easier for different parts of the computer to talk to each other and work together. This means you can do more things on your computer, like play games with high-quality graphics or connect to the internet easily.
So when you hear about the PCI, just think of it as the special drawer system that makes your computer work better and faster!