Lecture

In this lesson we talked about the internet, the video below is an example of how the internet works.  We took some notes about the internet and there are different examples:

1)There are different process for the internet to work: Packet switching, Network of Network, TCP/ IP.  

In School there are lots of networks and the internet connect  all the network together, they connected  by using the IP Address.  There are also Packets going one by one every single day they are called Packet switching, when they get to another side the computer can use it to get it work. This whole system is called Network to network. 

2)If someone takes a photo and he wanted to put it on Facebook, he connects it to his laptop to the school sever but it turns to be connecting others networks.  He put the photo to his laptop and uploads it on to Facebook.  Then his computer  finds Facebook's IP address, which it is located on the internet.  It splits the photo into Packets and it sends onto the network.  The Packets can go anywhere but if the packets gets lots or a network link goes down the TCP will find an different way or resend it packet again.  When all the packets gone there, then the photo will be finished and it will be post on Facebook.  Then that is called Network to network and they used TCP or IP.