12.The.Internet - The Internet With thanks to Dr Haipeng...

Info icon This preview shows pages 1–14. Sign up to view the full content.

View Full Document Right Arrow Icon
1 The Internet With thanks to Dr. Haipeng Guo and Mr. Mark Clulow Lecture 12
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2 Outline rhombus6 What is the Internet? rhombus6 History of the Internet rhombus6 Who is Using the Internet rhombus6 How to connect to the Internet rhombus6 How the Internet works rhombus6 Software and services supported by the Internet square6 WWW square6 Email square6 FTP square6 Search Engines
Image of page 2
3 What is a Network? square6 Collection of computers and devices connected to share information and resources
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
4 What is a LAN? square6 Local Area Network square6 Network in limited geographical area such as home or office building
Image of page 4
5 What is a WAN? square6 Wide Area Network square6 Network that covers large a geographical area using many types of media
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
6 What is the Internet? rhombus6 A network of computer networks worldwide rhombus6 The Internet is world s largest WAN rhombus6 Also called the information highway , the net , or cyberspace
Image of page 6
7 History of the Internet 1957 - the USSR launched Sputnik, the first artificial earth satellite 1958 - In response, the US Department of Defense established the A dvanced R esearch P rojects A gency ( ARPA ) Several years later ARPA began to focus on computer networking and communications technology
Image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
8 Idea of Package Switching rhombus6 In 1961, Dr. Leonard Kleinrock created the basic principles of packet switching , the technology underpinning the Internet, while a graduate student at MIT First node on the Internet
Image of page 8
9 ARPANET rhombus6 In 1969 ARPANET was constructed rhombus6 It is a network of four computers square6 UCLA square6 SRI (Stanford) square6 UCSB square6 University of Utah The first message: lo….gin
Image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
10 Internet Today rhombus6 The Internet has grown from four host computer systems to many millions rhombus6 By 1984, ARPANET had more than 1,000 individual computers linked as hosts rhombus6 In 1992, the Web Wide Web protocol was released square6 ARPANET had more than 1 million computers linked as hosts rhombus6 Today, more than 150 million hosts connect to the Internet rhombus6 In 2005, China’s Internet population was 111 million
Image of page 10
11 Rapid Growth rhombus6 Internet usage rose over 300% between 2000 and 2008 rhombus6 Africa's Internet Usage rose by 1,031% rhombus6 The Middle East Internet Usage increase was 1,176% rhombus6 The Middle East still only makes up 2.9% of the World Users
Image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
12 Internet Users
Image of page 12
13 Penetration Rates
Image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 14
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern