1. How Traffic Moves over the Internet
● ISP
● POP
● Internet backbone
● PDA

2. ISP
ISP[Internet services Provider]
ISP is company that offers access to the internet
and related services.

3. POP
POP[Post Office Protocol ]
An point of presence is n access point to the
Internet. is an application-layer Internet standard
protocol used by local e-mail clients.

4. Internet backbone
Internet backbone refers to the principal data
routes between large,it is aggregation of core
routers that transfer data to around the world.

5. PDA
A personal digital assistant
It is electronic equipment that has the same size
of pain

6. Refference
Wikipedia - http://ja.wikipedia.org/wiki
Google Images - http://www.google.com/images
e-words - http://e-words.jp