How Traffic Moves over the Internet

●PDAPDA●POPPOP●ISPISP●RouterRouter

PDA● Small machinery I carry

the information such as a schedule, ToDo, an address book, the memo with the personal digital assistant (the personal information terminal) known as a PDA, and to treat it.

POP ( Point of Presence )● When the user

connects POP with the Internet and the remotely server, it uses it. Moreover, the telephone carrier etc. offer, and facilities and the place for the exchange and the connection with other carries are called POP.

ISP(Internet Services Provider)

The Internet provider. The computer at the enterprise and home who is the customer is connected with the Internet through the line, the ISDN line, the ADSL line, the optical

fiber line, and the data communication lease line, etc.There is a trader who lends the disk space for the mail address and the starting a homepage as addition service,

and is offering original contents, too.

What is Router● Equipment that relays

data that flows on network to other networks.

● The router corresponding to two or more protocols is called a multi protocol router.

Reference

Wikipedia http://ja.wikipedia.org/

e-word http://e-words.jp/