Tony Yarusso's Blog

Reminders

• No class Monday, January 21st
• Handout #1 Due January 23rd
• Get some sort of FTP client on the flash drive
• Maybe get a diagramming tool as well

Web Requests

• [Diagram of client PC <--> ESPN.com]
• IP Addresses
• Domain names
• Encrypted traffic - https

HTML Documents

• Portable - works on many platforms, OS-independent, usually browser-independent
• Some differences
  • Operating System
  • Browser Type
  • Browser Versions
  • User Preferences
  • Screen Resolution

File Extensions in Windows

• [Walked through enabling of and making a sample file]

Connections

POTS

Plain Old Telephone Service (Dialup), uses a modem; 56Mbps

DSL

Digital Subscriber Line; 1500Kbps

Cable

coax; 10 Mbps max - availability issues

ISDN

Integrated Services Digital Network; 128Kbps

Satellite

Remote areas