A binary system of numbers is one that is composed only of ones and zeros. It was the system of choice for people who developed early computers--they needed a reliable way to get information across electrical circuits, and a way that was easy for the systems to understand.

Originally released by National Science Foundation, 2011. Streaming video file encoded with permission for digital streaming by Infobase on May 05, 2015.

Binary: Chalk Talk (1:00); --Binary (0:46); .