Pix
In short
Pix is a digital image format used primarily for storing and displaying pictures on computers and mobile devices.
In plain words
It is a way for computers to read and show photos. It tells the screen which colours to use for every tiny dot in an image.
A simple example
When you take a photo on your smartphone, the phone saves it as a Pix file so you can view it later.
Why it matters
Without these formats, we could not easily share photos on the internet or social media. It allows different devices to understand the same visual information.
Easy to mix up
Do not confuse Pix with 'pixel', which is the single tiny dot that makes up the whole image.