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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. Internet Timeline DarpaNet Berners-Lee Mosaic Browser
- 7. Internet Connectivity - Growth 1991 1992 Jan. 1993 Feb. 1994 Nov. 1994 Jun. 1996 Jun. 1997
- 8. 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
- 9. Networking – Domains Domain Hierarchy
- 10. Networking – Domains http://www.friendscentral.org org org 65.61.134.112
- 12. Networking - Internet “ Network of Networks” 1 2 3 5 4
- 13. Networking – Routing Single Point of Failure
- 15. 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
- 16. Traceroute 192.168.100.100 63.139.238.193 216.239.49.214 64.233.161.99
- 17. Networking – Communication Stack Open Systems Interconnection
- 18. Networking – Communication Stack (cont.) Open Systems Interconnection
- 19. Networking – Hardware Network Interface Card (NIC)
- 20. Networking – Data Communication
- 21. Networking – Communication Stack Data: Network: Name, Address, Phone, Visa, 0231234490987111 Transport: TCP info Name, Address, Phone, Visa, 0231234490987111 TCP info Address Address Data Encapsulation TCP info Name, Address, Phone, Visa, 0231234490987111 TCP info “ Segment” “ Packet” How Many Packets? What Order? Who am I? Where do I go?
- 22. Networking – Communication Stack Data Encapsulation Address Hub TCP info TCP info Address DATA TCP info TCP info Address Address DATA DATA Router Router Internet “ Segment” TCP info TCP info Address Address DATA “ Packet” Hub