Online Casinos

Online casinos, also known as virtual casinos or Internet casinos are online versions of traditional brick and mortar casinos. Online casinos enable gamblers to play and wager on casino games through the Internet.

Online casinos generally offer odds and payback percentages that are comparable to land-based casinos. Some online casinos claim higher payback percentages for slot machine games, and some publish payout percentage audits on their websites. Assuming that the online casino is using an appropriately programmed random number generator, table games like blackjack have an established house edge. The payout percentage for these games is established by the rules of the game.

Online casinos can be divided into two groups based on their interface: web-based and download-only casinos. Some casinos offer both interfaces.

Some casinos offer 'Live gaming', either exclusively, or as part of a wider online casino offering. In live online casinos, popular casino games such as roulette and blackjack are dealt by real dealers in casino studios, in an attempt to convey more of the atmosphere of a physical casino. Player actions including chat such as 'hit' in the game of blackjack may be transmitted to the dealer; in some online casinos more than one player may 'sit' at a particular 'seat' on the table, and in this case there is no interactivity between player and dealer. The question of which player s requested the extra card that the dealer dealt and which chose to 'stand' will be handled by the software. It is usual for players to be able to observe a video feed of the action, and equally common for players to opt to turn it off, if they lack the bandwidth - as the cards are read by OCR and other technology, the video feed is only ever a visual cue.

Web-based online casinos

Web-based online casinos are websites where users may play casino games without downloading software to the local computer. Games are mainly represented in the browser plug-ins Macromedia Flash, Macromedia Shockwave, or Java and require browser support for these plug-in. In addition, bandwidth is needed since all graphics, sounds and animations are loaded through the web via the plug-in. Some online casinos also allow game play through a plain HTML interface. Apple devices such as IPod, IPad and IPhone cannot play Flash games as the technology is not supported.

Download-based online casinos

Download-based online casinos require the download of the software client in order to play and wager on the casino games offered. The online casino software connects to the casino service provider and handles contact without browser support. Download-based online casinos generally run faster than web-based online casinos since the graphics and sound programs are located within the software client, rather than having to be loaded from the Internet. On the other hand, the initial download and installation of a download-based online casino client does take time. As with any download from the Internet, the risk of the program containing malware does exist. Still the graphics and sounds at download-based online casinos are most of the time much better than those at web-based online casinos.

Poker Blinds

A blind or blind bet is a forced bet placed into the pot by one or more players before the deal begins, in a way that simulates bets made during play. The most common use of blinds as a betting structure calls for two blinds: the player after the dealer blinds about half of what would be a normal bet, and the next player blinds what would be a whole bet. This two-blind structure, sometimes with antes, is the dominating structure of play for community card poker games such as Texas hold-em. Sometimes only one blind is used often informally as a "price of winning" the previous hand, and sometimes three are used this is sometimes seen in Omaha. In the case of three blinds usually one quarter, one quarter, and half a normal bet amount, the first blind goes "on the button", that is, is paid by the dealer.

    For example, in a $2–4 limit game, the first player to the dealer's left who, if not for the blinds, would be the first to act posts a small blind of $1, and the next player in turn posts a big blind of $2. After the cards are dealt, play begins with the next player in turn third from the dealer, who must either call $2, raise, or fold. When the betting returns to the player who blinded $1, he must equal the bet facing him toward which he may count his $1, raise, or fold. If there have been no raises when action first gets to the big blind that is, the bet amount facing him is just the amount of the big blind he posted, the big blind has the ability to raise or check. This right to raise called the option occurs only once: if his raise is now called by every player, the first betting round closes as usual.

Similarly to a missed ante, a missed blind due to the player's temporary absence i.e. for drinks or a restroom break can be denoted by use of a special button. Upon the player's return, they must pay the applicable blind to the pot for the next hand they will participate in. The need for this rule is eliminated in casinos that deal in absent players as described above. Also the rule is for temporary absences only; if a player leaves the table permanently, special rules govern the assigning of blinds and button see next subsection.

In some fixed-limit and spread-limit games, especially if three blinds are used, the big blind amount may be less than the normal betting minimum. Players acting after a sub-minimum blind have the right to call the blind as it is, even though it is less than the amount they would be required to bet, or they may raise the amount needed to bring the current bet up to the normal minimum, called completing the bet. For example, a limit game with a $5 minimum bet on the first round might have blinds of $1 and $2. Players acting after the blind may either call the $2, or raise to $5. After the bet is raised to $5, the next raise must be to $10 in accordance with the normal limits.

Slot Machine

A slot machine is a casino gambling machine with three or more reels which spin when a button is pushed. Slot machines are also known as one-armed bandits because they were originally operated by a lever on the side of the machine the one arm instead of a button on the front panel, and because of their ability to leave the gamer penniless bandit. Many modern machines still have a legacy lever in addition to the button.

Slot machines include a currency detector that validates the coin or money inserted to play. The machine pays off based on patterns of symbols visible on the front of the machine when it stops. Modern computer technology has resulted in many variations on the slot machine concept. Slot machines are the most popular gambling method in casinos and constitute about 70 percent of the average casino's income.

A person playing a slot machine purchases the right to play by inserting coins, cash, or in newer Ticket-In, Ticket-Out machines, a paper ticket with a barcode, into a designated slot on the machine. The machine is then activated by means of a lever or button, or on newer machines, by pressing a touch screen on its face. The game itself may or may not involve skill on the player's part — or it may create the illusion of involving skill while only being a game of chance.

The object of the game is to win money from the machine. The game usually involves matching symbols, either on mechanical reels that spin and stop to reveal one or several symbols, or on simulated reels shown on a video screen. The symbols are usually brightly colored and easily recognizable, such as images of fruits, numerals or letters, and simple shapes such as bells, diamonds, or hearts; newer video slot machines use animated cartoon characters and images of popular actors or singers in the case of themed slot machines, as described below.

Most games have a variety of winning combination of symbols, often posted on the face of the machine or available on a different screen, accessible by touching a button on the main touch screen, on video slot machines. If a player matches a combination according to the rules of the game, the slot machine pays the player cash or some other sort of value, such as extra games.

There are many different kinds of gambling slot machines in places such as Las Vegas as well as casinos modeled after those in Las Vegas, including those operated on Native American reservations. Some of the most popular are the video poker machines, in which players hope to obtain a set of symbols corresponding to a winning poker hand. Depending on the machine, players can play one, 100, or more hands at one time.