What is the Kensington security slot used for?

Definition of Kensington lock kensington lock slot It would seem that Kensington has identified the lack of a lock slot on ultrabooks and the like They have a solution: Security Slot Adapter kensington nano security slot™ Designed to provide a simple locking solution for laptops without security slots, the locking My laptop has no Kensington lock slot, I managed

kensington lock slot Kensington N17 Dell Cable Lock for Laptops with Wedge Lock Slot - Combination Lock - Carbon Steel · 4 out of 5 stars ₹3,674₹3,674