Wires carry information through the machine in the form of electricity.
*The two options a computer uses with respect to this electrical information are "off" and "on". 
*When computers represent information using only two options, it's called "Binary"
*That theme of two options doesn't stop when the information gets to its destination.
  • Computers also store information using binary.
    • Binary isn't always off and on.
      • Hard Disk Drives store information using magnetic positive and magnetic negative
      • DVDs store information as either reflective or non-reflective