The set of years has passed after invention of the first slot machine, and myths proceeded about the way these automatic machines function.
On an extent of the major part of the 20th century, playing automatic machines was the same. Three turning drums, rotated at first manually, and then electric switches. The position in which drums appeared after a stop, depended basically on a gravity.
Since then, time of rotation of a drum and quantity of symbols for each drum remains invariable, chances and probabilities could be counted up by drawing up the scheme of drum-type symbols, and the system of rates could be improved for advantage granting to sharp players.
Everything has changed in 1984, when Inge Telnaus has patented a special computer method of calculation of results of a slot machine. As soon as the system was extended, players have ceased to trust the automatic machine. There was a considerable quantity of myths how the computer chooses an advantageous variant, and how the player can receive the best chance of a victory and leaves the winner.
People do not like to trust computer technologies, and also that the result which is chosen by the computer, is really casual. Thus, myths continued to exist, from logical, but erroneous, up to absolutely ridiculous and absurd ones.
It is necessary to learn what actually Inge Telnaus has invented with the computer-based system which is a basis of all playing automatic machines. The system – the patent has soon been bought then just created Intellectual Graphic Terminal (IGT) which used it up to the patent expiry of the term in 2004 – became everywhere known as “a virtual drum” since by means of it results have ceased to depend on movements of material drums. Instead of it, each result was calculated by the number in the computer program. Low-paid or no-charge results were calculated by set of numbers, and jack-pot symbols were only several or were calculated generally in one number. These numbers have been written down on the game chip, together with the device of random numbers generation (RNG) which continuously processes all possible combinations with huge speed. As soon as players pulled the handle or pressed the button, the mechanism in any order generated one number in the program.
Manipulating the combinations of numbers fixed to each symbol or repeating result in the program, manufacturers could count theoretically the recoupment period, basing on computer modeling of millions rotations. However the mathematical genius could not count chances any more, including symbols and looking on the table of payments because physical rotations of a drum have lost sense. Device GSCH chose result and gave a signal to the computer step-by-step engine for a drum stop. Now drums were used only for display of the result chosen in any order by this device.