# Etymologie, Etimología, Étymologie, Etimologia, Etymology IE Irland, Irlanda, Irlande, Irlanda, Ireland Wahrscheinlichkeitstheorie, Teoría de la Probabilidad, Théorie des probabilités, Teoria della Probabilità, Probability Theory

## R

### random Random numbers

(E?)(L?) http://www.random.org/

What's this fuss about true randomness?

Perhaps you have wondered how predictable machines like computers can generate randomness. In reality, most random numbers used in computer programs are pseudo-random, which means they are a generated in a predictable fashion using a mathematical formula. This is fine for many purposes, but it may not be random in the way you expect if you're used to dice rolls and lottery drawings.

RANDOM.ORG offers true random numbers to anyone on the Internet. The randomness comes from atmospheric noise, which for many purposes is better than the pseudo-random number algorithms typically used in computer programs. People use RANDOM.ORG for holding drawings, lotteries and sweepstakes, to drive games and gambling sites, for scientific applications and for art and music. The service has existed since 1998 and was built and is being operated by Mads Haahr of the School of Computer Science and Statistics at Trinity College, Dublin in Ireland.

As of today, RANDOM.ORG has generated 1,045 billion random bits for the Internet community.

• Games: Lottery Quick Pick | Keno Quick Pick | Coin Flipper | Dice Roller | Playing Card Shuffler | Birdie Fund Generator
• Numbers: Integers | Sequences | Integer Sets | Gaussian Numbers | Decimal Fractions | Raw Bytes
• Lists & More: List Randomizer | Strings | Passwords | Clock Times | Calendar Dates | Geographic Coordinates | Bitmaps | Pregenerated Files | Jazz Scales | Pure White Audio Noise | Samuel Beckett
• Drawings: How to Pick a Winner (FREE) | Third-Party Draw Service | Step by Step Guide | Step by Step Video | Price Calculator | Public Records | Terms and Conditions | Drawing FAQ
• Web Tools: Widgets for Your Pages | API for Automated Clients | Guidelines for Automated Clients | Banned Hosts
• Statistics: Real-Time Statistics | Graph Browser | Testing Random Numbers | Total Bit Tally | Your Quota
• Testimonials: Lotteries and Drawings | Games and Gambling | Random Sampling | Simulation and Modelling | Security | The Arts | Miscellaneous
• Learn More: Company Information | Contact | FAQ | Introduction to Randomness | History of RANDOM.ORG | Acknowledgements | Media and Scientific Citations | Newsletter | Quotations about Randomness | What's New!

(E?)(L?) http://www.random.org/company/

Registered Office: RANDOM.ORG - Randomness and Integrity Services Limited - Unit 20 - 2 Waterloo Road - Dublin 4 - Ireland

(E?)(L?) http://www.random.org/widgets/integers/

Erstellt: 2011-11