On the contrary, online casino slots use an electronic "random number generator" or RNG, operating inside an extremely large computer program that manages the game graphics, the player accounts of men and women who join the game, the statistics of every hand played, as well as more. The random number generator is hard-coded software instructions that do not change. There is absolutely no "sense switch" (see the Bourie article) that will be flipped to give players worse odds. Regarding control parameters, each utilization of the RNG matches the final use, and can be the same as the next use. The numbers will come out randomly, but the pattern of randomness never changes. This really is a true advantage of software-based online casino slots.
Land-based slot machines may also have payout percentages as low as 83%, which just isn't true with online casino slots. In online gaming, each machine has the exact same winning percentage as the additional machines. You may see the payout percentages for many online gaming sites, view dados.ufcspa.edu.br and also you shall see which it rarely drops below 95% - that is, the house makes a 5% profit, on the regular. The truth is, most casinos can document that their payout percentages are in the 97% - 98% range. Therefore you may spend an hour, gamble your $100 stake about 3 times, and on the average it shall cost you $7.50. But players do not gamble to be average: the true reward will be the high-paying win. And also the high-paying win is balanced, remember, by a number of players who lose and finance that win.
So are online casino slots fair? Yes, they clearly are. The software that operates the games is tested regularly by independent testing laboratories (look for logos at the bottom of the casino website), and no game is individually controllable to be biased. Which is a far cry from the situation with land-based slot machines, appropriately called "one-armed bandits".
Players improve odds, they get absolute consistency across all games - but no-one can guarantee a win every time. That is just the nature of gambling, and that's a component of the thrill.