What is a Slot?

A slot is a designated opening in a machine, typically one that accepts cash or, as with “ticket-in, ticket-out” machines, paper tickets that have barcodes. Activating the slot triggers reels to spin, and if the symbols match a winning combination, the player receives credits according to a paytable. Typical symbols include fruits, bells, and stylized lucky sevens. Most slots have a theme, and the payouts vary accordingly.

Slots are purchased and assigned to resources in pools called reservations. Using multiple reservations can prevent different workloads from competing with each other for the same resource, and it can also help control the flow of work through your organization. This feature is sometimes referred to as capacity-based pricing or on-demand pricing. For example, you may have a reservation named prod for production workloads and a separate reservation for testing to avoid conflict.