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Networking
- 1. 9 th Grade Computer Science Rotation Mr. Fedder/Mr. Crowley
- 2. Networking History of Computers Computer Architecture Hardware & Networking Software
- 3. Networking History How networking works Layers Communication Protocols DNS Tools Internet Growth
- 4. Networking: Terms Domain Download Upload traceroute ping WAN/LAN FTP Encapsulation Packet Router TCP/IP DNS Bandwidth Baud KB Mbps
- 5. History of Networking 1994 - Time magazine: “It was not designed for doing commerce, and it does not gracefully accommodate new arrivals.” 1995 – Newsweek : “BAH!” … “baloney.” “ THE INTERNET?”
- 6. History of Computers – Networking Arpanet - 1969
- 7. History of Computers – Networking Vinton Cerf Bob Kahn Tim Berners-Lee
- 8. Internet Timeline Mosaic Browser 1993 DarpaNet 1969 Berners-Lee 1989
- 9. Internet Connectivity - Growth 1991 1992 Jan. 1993 Feb. 1994 Nov. 1994 Jun. 1996 Jun. 1997
- 10. Networking - Addressing URL http://www.friendscentral.org/default.asp [email_address] E-Mail File Name Server Name Service Name Mailbox Name Domain Name Top-Level Domain Top-Level Domain Domain Name
- 11. Networking – Domains Domain Hierarchy
- 12. Networking – Domains http://www.friendscentral.org org org 65.61.134.112
- 14. Networking - Internet “ Network of Networks” 1 2 3 5 4
- 15. Networking – Routing Single Point of Failure
- 17. IP: 192.168.2.161 IP: 192.168.1.5 63.139.238.193 192.168.100.100 216.239.49.214 www.google.com 64.233.161.99 64.233.161.99 Name Server
- 18. Traceroute 192.168.100.100 63.139.238.193 216.239.49.214 64.233.161.99
- 19. Networking – Communication Stack Open Systems Interconnection
- 20. Networking – Communication Stack (cont.) Open Systems Interconnection
- 21. Networking – Hardware Network Interface Card (NIC)
- 22. Networking – Hardware HUB
- 23. Networking – Data Communication
- 24. Networking – Data Encapsulation Data: Network: Name, Address, Phone, Visa, 0231234490987111 Transport: TCP info Name, Address, Phone, Visa, 0231234490987111 TCP info Address Address Transmission Control Protocol Internet Protocol TCP info Name, Address, Phone, Visa, 0231234490987111 TCP info “ Segment” “ Packet” How Many Packets? What Order? Where did I come from? Where do I go?
- 25. Networking – Packet Transmission Data Encapsulation Address Hub TCP info TCP info Address DATA TCP info TCP info Address Address DATA DATA SOURCE DESTINATION Router Router Internet TCP info TCP info Address Address DATA “ Packet” Hub “ Segment”
- 27. Networking: Terms Domain Download Upload traceroute ping WAN/LAN FTP Encapsulation Packet Router TCP/IP DNS Bandwidth Baud KB Mbps