ELI5: Explain Like I'm 5

Cray pointer

A cray pointer is used to help you point to things on the computer. It looks like a pen with a special kind of tip. When you press the tip of the cray pointer against the computer screen, it lights up so you can tell where you are pointing. It can be used to click on things on the screen and draw pictures too. This is a helpful tool when you're using the computer.
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