Modern gaming machines use computer technology to operate their functions. Slot machine outcomes are determined unsing a Random Number Generator (RNG) which is a mathematically-based program that selects groups of numbers to determine which symbols are selected to produce a winning or losing outcome.

A slot machine (American English), called also fruit machine (British English), the slots (Canadian English), poker machine or "pokies" (slang) (Australian English and New Zealand English) or simply slot (American English), is a casino gambling machine with set of numbers or pictures that after putting money in it and ...