Discussion Questions: Bandwidth and Data Conversion

What is binary code?
Differentiate between series and parallel data transmission. How do the analog signals that are transmitted simultaneously over a single wire differ?
Everybody at times thinks their computer is "too slow." Do you think this could be due to bandwidth limitations? Why or why not?
There has been some interest in replacing the wires used for data communications within your computer with fiber optic cables. Would this be a good idea? Why or why not?