Computers, digital cameras, MP3s, CDs, and video games are all possible because of a mighty pair of numbers. The numbers are ONE and ZERO!

bicycle                        biplane                        bilingual                      binary

All of these words start with the prefix bi- . A bicycle has 2 wheels, a biplane has 2 wings, a person who speaks 2 languages is bilingual. A number system that uses only 2 numbers is called binary . Believe it or not, you can make any number you want by combining the two numbers: one and zero . HOW? It's easy; the secret is PLACE VALUE!