Lecture 01 - Introduction to computer communication and the OSI model

Part 1: Who is who?

• An example with humans (and a cat)
• A schematic diagram of a general communication system
• A few modes of communication Part 2: The OSI model
• What is the OSI model?
• Question about basic needs
• The 7 layers
  • Physical layer
  • Data link layer
  • Network layer
  • Transport layer
  • Session layer
  • Presentation layer
  • Application layer
• Repetition: The complete model

Keywords

OSI model, TCP/IP, Unicast, Broadcast, Multicast, Anycast, CSMA/CD, CSMA/CA, Duplex

Resources

• HTML-presentation
• Recording (Youtube)

Lecture 02 - Some TCP/IP protocols

Part 3: Some TCP/IP protocols

• Repetition: the complete (OSI) model
• The application layer
• The transport layer
  • The 3-way handshake
• The internet/network layer
  • Networks and hosts
  • Special addresses
• The data link layer
• DNS
• ARP
• The chain that gives the addresses
• Protocols mentioned in this lecture
• Request for comments (RFC)

Keywords

TCP/IP, Application layer, Transport layer, 3-way handshake, Internet/Network layer, Special addresses, DNS, ARP, HTTP header, TCP, UDP

Resources

• HTML-presentation
• Recording (Youtube)