The binary number system uses only 1s and 0s to represent all data that computers process. It was first described in ancient India and introduced by Gottfried Leibniz in the 17th century. Claude Shannon later used binary code in his thesis which helped establish its practical use in computers and electronics. Braille is a common example of binary code used in the real world. Binary represents numbers in base 2 rather than base 10, with each binary digit called a bit and 8 bits making a byte of data.

1. The Binary Number System Everyone’s favorite topic!!

2. Why do we learn about the Binary System? Because this is how computers process information. Understanding this system will give us a better understanding of how computers work and communicate with other devices.

3. Brief History of the Binary Code Binary numbers were first described in Chandashutram written by Pingala in 100 BC. Binary Code was first introduced by the German mathematician and philosopher Gottfried Wilhelm Leibniz during the 17th century. In 1937 Claude Shannon used the Boolean algebra he learned at MIT in his thesis, which became a starting point for the use of the binary code in practical applications such as computers, electric circuits, etc.

4. Can you tell me one common form of the binary code? Almost everyone has seen or heard of it… It’s extremely common in public buildings….. Can anyone guess it?? It’s BRAILLE!!!

5. What is the Binary Code? It’s a set of numbers used to transmit data using only 1s and 0s They can be broken down into bits and bytes. One binary digit is called a bit. Eight “bits” = One “byte”

6. Base 10 v. Base 2 Numbers today are counted in what’s called a base 10 system. We use the digits 0-9 to represent all numbers Base 2 uses only two digits (1s and 0s) to represent all numbers.

7. Translating numbers into binary 0 1 2 3 4 5 6 7 8 9 0 1 10 11 100 101 110 111 1000 1001

8. YouTube Time! http://www.youtube.com/watch?v=ry1hpm1GXVI

9. Group Work Now it’s time to practice what we learned Each group will get two worksheets that contain numbers, words, and puzzles to translate into or out of binary code. Good luck!!