How the Internet Works - The Physical System

Essential Knowledge Skills

TBWBAT understand that the Internet connects devices and networks all over the world

TBWBAT understand that connecting new devices to the Internet is enabled by the assignment of an Internet protocol (IP) address

TBWBAT understand that the bandwidth of a system is a measure of bit rate - the amount of data (measured in bits) that can be sent in a fixed amount of time

TBWBAT understand that the latency of a system is the time elapsed between the transmission and the receipt of a request

Suppose you are in a coffee shop, using their wifi and you want to send the following email to your friend in Spain.

Despite the lack of accents and, perhaps, proper grammar in this email, the wifi, copper cables, and fiber optic cables that make up the Internet have made it much easier to communicate with people all over the glove than in the past

What, and who, is involved in getting this email from Nashville, TN to Sevilla, Spain?

How fast is it going to get there?

These questions are good ones and the answers will only be partial today. Do not worry though, more exciting details are to come!

IP - the Internet Protocol

Who are some Internet Service Providers (ISP)?

How fast is the email going to be sent?