Holographic Versatile Disc

A holographic versatile disc is like a fancy DVD that can hold way more information. You know how you can watch movies or play games on a DVD? Well, a holographic versatile disc can do that too, but it can also store other things like pictures, music, and important data.

The way it works is kind of like magic. You know how you sometimes make a picture look 3D by looking at it a certain way with your eyes? Well, a holographic versatile disc uses that same idea to store information.

It has a special layer in it that can make different pictures, or holograms, depending on how it's read. The disc has a laser that shines on this layer and creates the hologram. The laser can read lots and lots of tiny little spots on the layer to figure out what information is stored there.

Because it can read so many tiny spots, a holographic versatile disc can hold way more information than a regular DVD or CD. So, it's kind of like if your backpack could hold way more toys and books than it does now.

Overall, a holographic versatile disc is a cool way to store lots of different types of information, and it works by using lasers to read tiny little spots on a special layer that makes holograms.