Questions:

1. Find some information on the history of the GUI (Graphical User Interface). Who developed it first? Why wasn't it marketed early on as a computer interface? (i.e. someone blew it!)

2. Find some information on the history of CISCO. Who started it and what were some of their early struggles and successes. Try to identify a key point in time where CISCO rose to "power the internet" and what kind of hardware did they provide that was key to achieving this power.

   
   
   
   

3. Refer to the diagram below

   a) List all the possible values of photon energies that this atom "emit" if the electron is moved to the highest energy level shown in this diagram (e.g. energy level = 12) b) If an incoming photon has energy = 9 units and the electron is in the ground state (as pictured), what will happen to the incoming photon and the electron? c) if the electron is in the first excited state (e.g. energy level =5) and in incoming photon of of energy = 5 units hits the atom, what will happen to that photon and the electron?

   
   
   

4. Explain some of the many advantags that Fiber Optic Cable has over other media (e.g. conductive wires) in the transport of information.
   
   
5. Do some research and then report/estimate the total number of devices that are thought to now be on the internet. Compare this to the number of people on the planet and suggest both a positive and negative aspect of this current situation.