Randomness is something that happens by chance, so it can be unpredictable. There are many applications of randomness in the world, but one of the most common applications is in computer programs. Computer programs can use randomness to get a different result each time the program is run. For example, when you play a game online, the game might generate a different map each time, or a different character might win or lose. Randomness helps to make sure that games are different each time and no two people have the same experience when playing the same game. Randomness is also used in computer security to create passwords that are difficult for hackers to guess. The randomness makes it so that no two passwords are the same and makes it harder for hackers to gain access to your account.