Computerization edit With microprocessors now ubiquitous, the computers inside modern slot machines allow manufacturers to assign a different probability to every symbol on every reel. Auto play is a mode which helps the player to automate the game without havingto click at the spin with each spin Technology used with slot machine Reels : all the slot machines have mechanical reels where the results are display and determined. . Candle is a light found at the top of a slot machine. The machine is then activated by means of a lever or button, or on newer machines, by pressing a touchscreen on its face. "One-Armed Bandit" redirects here. The maximum theoretical payout, assuming 100 return to player would be 1000 times the bet, but that would leave no room for other pays, making the machine very high risk, and also quite boring. They can appear on any of the reels. Since the player is essentially playing a computer / video game, the manufacturers are able to offer more interactive elements, such as advanced bonus games and advanced video graphics. 25 One reason that the slot machine is so profitable to a casino is that the player must play the high house edge and high payout wagers along with the low house edge and low payout wagers. Thus the odds of losing symbols appearing on the payline became disproportionate to their actual frequency on the physical reel. "Do slot machines play mind games with gamblers?". In practice, this means that machines cannot let reels slip more than 4 symbols.