French card historian Thierry Depaulis debunks this story, showing that prospectors during the Klondike Gold Rush (1896–99) gave the name blackjack to the game of American vingt-un, the bonus being the usual ace and any 10-point card. Since blackjack also refers to the mineral zincblende, which was often associated with gold or silver deposits, he suggests that the mineral name was transferred by prospectors to the top bonus hand. He could not find any historical evidence for a special bonus for having the combination of an ace and a black jack.(資料來源 )
Blackjack games usually offer a side bet called insurance, which may be placed when the dealer’s face-up card is an ace. Additional side bets, such as “Dealer Match” which pays when the player’s cards match the dealer’s up card, are also sometimes available. (資料來源 )
Casino operators rely on tiny microchips known as number generators (RNGs) to ensure the unintended effect of spins on online slots. What is RNG technology? Simply put, RNG is a microchip designed to continue to generate numerical sequences, even if the slot game does not play. This set of numbers is fast-paced – and soon means faster than man, billions of times a second!
Random is the key to all kinds of casino games. That is why they are considered opportunity games. It is up to you to win or lose the spin of the reels. Of course, there are casino games where players can influence the outcome. Take blackjack as an example, with several strategies players can use to increase RTP percentages over time. The fact is that while blackjack players can make wise decisions using strategy, you cannot guarantee a winning hand. The shuffling and operation of the cards are unpredictable, as is the spinning of the reels inside the slot game.（原文出處：https://gamerules.com/rng-mechanisms-in-slot-machines-explained/ ）
