9 th  Grade Computer Science Rotation Mr. Fedder/Mr. Crowley
Networking <ul><li>History of Computers </li></ul><ul><li>Computer Architecture  </li></ul><ul><ul><li>Hardware & Networki...
Networking <ul><li>History </li></ul><ul><li>How networking works </li></ul><ul><ul><li>Layers </li></ul></ul><ul><ul><li>...
Networking:  Terms <ul><ul><li>Domain </li></ul></ul><ul><ul><li>Download </li></ul></ul><ul><ul><li>Upload </li></ul></ul...
History of Networking <ul><ul><li>1994 -  Time  magazine: “It was not designed for doing commerce, and it does not gracefu...
Internet Timeline DarpaNet Berners-Lee Mosaic Browser
Internet Connectivity - Growth 1991 1992 Jan. 1993 Feb. 1994 Nov. 1994 Jun. 1996 Jun. 1997
Networking - Addressing <ul><li>URL </li></ul>http://www.friendscentral.org/default.asp [email_address] <ul><li>E-Mail </l...
Networking – Domains <ul><li>Domain Hierarchy </li></ul>
Networking – Domains http://www.friendscentral.org org org 65.61.134.112
Networking - Types
Networking - Internet <ul><li>“ Network of Networks” </li></ul>1 2 3 5 4
Networking – Routing Single Point of Failure
Networking – Routing
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...
Traceroute 192.168.100.100 63.139.238.193 216.239.49.214 64.233.161.99
Networking – Communication Stack <ul><li>Open Systems Interconnection </li></ul>
Networking – Communication Stack (cont.) <ul><li>Open Systems Interconnection </li></ul>
Networking – Hardware <ul><li>Network Interface Card (NIC) </li></ul>
Networking – Data Communication
Networking – Communication Stack Data: Network: Name, Address, Phone, Visa, 0231234490987111 Transport: TCP info Name, Add...
Networking – Communication Stack <ul><li>Data  Encapsulation </li></ul>Address Hub TCP info TCP info Address DATA TCP info...
Networking – Communication
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Networking

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  • Time Magazine NEVER SAID THAT! This sentence is completely taken out of its context!
    Have a look at that: http://www.time.com/time/magazine/article/0,9171,981132,00.html (the date of the article is wrong - you will notice that when you actually read the article).

    As for Newsweek... http://www.newsweek.com/1995/02/26/the-internet-bah.html :)
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  • Networking

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

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