Sending Data from A to B across the Internet

• A is you home computer
• It is connected by phone lines to an Internet Service Provider (ISP)
• The ISP is connected to an Internet Access Point
• B is on an local area network at XYZ Computers
• XYZ has its own Internet Access Point
• The Internet Access Points are connected by a complex collection of pathways (the Internet)
• Over these pathways a message sent from one access point can eventually reach any access point