A coin hopper is a component in land-based slot machines that is used to dispense the winnings to players in the form of coins. When a player wins, the machine's computer instructs the coin hopper to release the appropriate amount of coins into the coin tray, where the player can collect them.
The coin hopper is essentially a rotating tray that holds a certain amount of coins and is located inside the slot machine. When the player presses the 'Cash Out' button or if the machine needs to pay out winnings, the hopper rotates to dispense the coins.
It's important to note that coin hoppers are less common in modern slot machines, which often use paper tickets or electronic payments instead of coins. However, they can still be found in some older or traditional-style machines.