In particular, the Liberty Bell Slot Machine (SLOT) was a hot topic at the time because both the judgment of the game result and the payment of the winnings were made automatically, and many people who used it upgraded the 5-reel poker machine released by Sitman and Pete in 1891. I think it was made by that. If this assumption is correct, it can be inferred that the world's first slot machine, Liberty Bell, was made between 1891 and 1895.

Charles Fay had to make the structure of the slot machine as simple as possible in order to automate both the judgment of the game result and the payment of the prize money. As a result, only five symbols, including hearts, diamonds, spades, 온라인슬롯 horseshoes, and liberty bells, were placed on three reels. . History of Slot Machines Among the Liberty Bells, the Liberty Bell, which symbolized Philadelphia, was the most valuable symbol, so the name of the slot machine was also named Liberty Bell. Later, as companies with larger capital entered the slot market, 3-reel classic slots became full-fledged. has been popularized.

Another scenario when slots are removed, even if they are still working, is outdated. Examples of these types of cabinets are mechanical slots before digital cabinets. Mechanical slots are more of a novelty or decoration piece than a money maker for casinos.

To be clear, slots that accept coins or tokens are not removed from a casino immediately. These machines are upgraded with a bill acceptor to take paper money from the players. Rather than showering players with their winnings in coins, a printer provides you with tickets you can redeem for cash. On the other hand, slots that are incompatible with bill acceptors are removed from the gambling floor.

Why would casinos remove slots that do not accept paper bills? The answer is overhead reduction. It takes time, workforce, and counting equipment to tally all the coins and tokens from slot machines before the 2000s. There are also instances of coin jams among slot machines that bring down the daily revenue while increasing maintenance costs. It is also difficult for casinos to get accurate data on how much earnings they made from slots. With the introduction of a ticket system, casinos can do away with counting equipment and coin jams while receiving an accurate profit report on their slots.