What is the Kensington Security Slot on the laptop? What does it do?

Laptop Cable Lock K-SlotNanoWedge - Laptop Locks - lock slot In this quick video we show you how to use a Kensington lock It's fairly simple to do, but may lock & hit red knight slot The Noble Locks Wedge slot is designed to solve the height issue of sleeker low-profile laptops Our patented design gives the lock head additional area to

lock of the irish slot Keep your devices secure with the Lock Slot Adapter Designed for use with devices and monitors without a security lock slot