Create random numbers for games, contests, statistics, or any time you need an unbiased choice.
Computers are deterministic machines, meaning they follow explicit instructions. True randomness is difficult to achieve. Most random number generators, including this one, are Pseudo-Random Number Generators (PRNGs). They use a mathematical formula and a starting value (a "seed") to produce a sequence of numbers that appears random but is actually reproducible if you know the seed and the formula. For most applications like games or picking winners, this is perfectly sufficient.