• We use the internet everyday. Have you ever wondered what it is?

• We saw that the internet started as a bunch of computers connected together to make a network.
• However, the internet we have today is a LOT more complex than that.
• How does it work? How does information get from one place to another?

• Just how big is the internet?
• This is outer space:
  
  

  "Milky Way" by A. Fujii, Hubble Telescope is licensed under CC BY 4.0

• This is the internet:
• 
  

  Screenshot of The Internet Map

• Check out the internet map and see for yourself!
• https://internet-map.net/

• Its hard to wrap your brain around just how big the internet is.
• We know it has millions and millions of websites.
• But, how much data does it contain?

https://andygreenhaw.wordpress.com/2010/08/02/how-big-is-the-internet/

• How much new data are we adding to the internet every minute?

https://www.iflscience.com/technology/amount-data-internet-generates-every-minute-crazy/

• Okay, we get it. The internet is big. REALLY big.
• And it's made up of wires, fiber optic, and radio waves.
• But, how does a computer know which wires to use?
• How does data go from one place to another without getting lost in all the other data on the internet?
• This is where IP addresses and DNS servers come in:

• Open up your slideshow from the beginning of this course.
• Add some new slides for each of the following concepts:
• Bandwidth
• Packet
• IP Address
• Internet Service Provider (ISP)
• Domain Name Server (DNS)
• For each slide, add:
• A short definition, in your own words.
• An image to illustrate this concept.
• At least one link to a website or video that helps explain this concept.
• The images and videos in the unit here will get you started, but you'll need to do some more research of your own to complete these slides.
• Once you have finished, submit the link to your slideshow as evidence of learning in this unit.