Internet History & Your Project. Internet Timeline Once you get the text, be sure to read: Development of the Internet Timeline pp 121-124 Highlights:

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Presentation transcript:

Internet History & Your Project

Internet Timeline Once you get the text, be sure to read: Development of the Internet Timeline pp Highlights: Innovation Phase: Institutional Phase: Commercial Phase: 1995-today

Internet Characteristics Analogy: Human Characteristics that really matter: –Humans walks on two legs –Humans have a 3lbs brain. –Humans communicate with speech and written words Internet characteristics that really matter: –Internet uses packet switching – data is broken into little packets that have to re-assembled –Internet uses TCP/IP protocol – robust protocol for sending everything from to video –Internet used IP addresses

Packet Switching PAD – Packet assembler/dissembler

TCP/IP Transmission control protocol Internet Protocol

IP Address 32-bit number –Uniquely identifies devices on the Internet –4 billion unique devices. Soon there will be more than 4 billion devices: –62-bit IP address –Sub-netting – one IP address gets you to a subnet, which uses its own internal IP address.

World Wide Web (WWW) Only part of the Internet –There are companies that use the Internet to connect two computers, yet these computers are not part of the WWW. To be part of the world wide web, you need a URL –Uniform Resource Locator (not universal)

URL examples ftp://ftp.mit.edu/public/data.db

DNS Domain Name System The WWW is supported by a network of DNS servers These server help translate URL into IP Addresses. Domain Names are a fundamental concept that is connected to E-commerce.