What's the hole on the laptop for a task?

What's the hole on the laptop for a task?

That's probably some connection. What kind of help do you have to find out by means of instructions or symbols at the opening itself?

Since you can take something. For example, to establish a (radio) connection to a projector.

Kensington lock. Is a kind of theft protection. Are you doing the notebook and z. B. At your desk.

https://de.wikipedia.org/...on-Schloss