Presentation is loading. Please wait.

Presentation is loading. Please wait.

The Beauty and Joy of Computing Lecture #15 Internet I UC Berkeley EECS Lecturer Gerald Friedland

Published byRodger Hall Modified over 9 years ago

Similar presentations

Presentation on theme: "The Beauty and Joy of Computing Lecture #15 Internet I UC Berkeley EECS Lecturer Gerald Friedland"— Presentation transcript:

1 The Beauty and Joy of Computing Lecture #15 Internet I UC Berkeley EECS Lecturer Gerald Friedland http://www.fastcompany.com/3020704/fast-feed/want-to- see-who-watches-you-online-this-browser-add-on-in- lets-you?partner Lightbeam: Visualizing third-party web trackers. Good: Nice insight Bad: Doesn’t prevent tracking

2 UC Berkeley “The Beauty and Joy of Computing” : Internet I (2) Friedland Internet is pretty much everywhere!

3 UC Berkeley “The Beauty and Joy of Computing” : Internet I (3) Friedland Quick Question I In the last 3 years, what was the longest time stretch you have ever been without Internet?  Several hours  1-2 days  More than 2 days  Several weeks  More than several weeks

4 UC Berkeley “The Beauty and Joy of Computing” : Internet I (4) Friedland Quick Question II What was the reasons for not having access to the Internet?  Technical interruption  In an area with no Internet  Voluntary break  Didn’t bother having access  Other

5 UC Berkeley “The Beauty and Joy of Computing” : Internet I (5) Friedland The basics of the basics http://youtu.be/7_LPdttKXPc

6 UC Berkeley “The Beauty and Joy of Computing” : Internet I (6) Friedland Network Topologies Point-to-Point (Peer-to-Peer) Starnet/Arcnet Token Ring

7 UC Berkeley “The Beauty and Joy of Computing” : Internet I (7) Friedland Network Topologies II Ethernet (Bus)  Most prevalent network today  Wireless networks = Ethernet topology!

8 UC Berkeley “The Beauty and Joy of Computing” : Internet I (8) Friedland Network Topologies III An internet

9 UC Berkeley “The Beauty and Joy of Computing” : Internet I (9) Friedland The Internet 1982

10 UC Berkeley “The Beauty and Joy of Computing” : Internet I (10) Friedland The Internet 1986

11 UC Berkeley “The Beauty and Joy of Computing” : Internet I (11) Friedland The Internet Today Internet Usage as a Percentage of Population (2012) Source: Wikimedia Commons

12 UC Berkeley “The Beauty and Joy of Computing” : Internet I (12) Friedland Why is there only ONE Internet? Question Picture credit: Chelsea Ganske

13 UC Berkeley “The Beauty and Joy of Computing” : Internet I (13) Friedland  The major point in building networks is agreement.  The Internet was build  using a decentralized architecture  using open protocols Growth of the Internet

14 UC Berkeley “The Beauty and Joy of Computing” : Internet I (14) Friedland Properties of the Internet: Decentralization Source: BJC Spring 12, Lecture 17

15 UC Berkeley “The Beauty and Joy of Computing” : Internet I (15) Friedland Properties of the Internet: Open Standards  Internet Engineering Task Force (IETF):  Request for Comments (RFC)  World Wide Web Consortium (W3C)  HTML  International Standards Organization (ISO)  JPEG, MPEG  Institute of Electrical and Electronics Engineers (IEEE)  WiFi

16 UC Berkeley “The Beauty and Joy of Computing” : Internet I (16) Friedland IP Addresses  Split: First part network, second part computer indicated by /bits: e.g. 192.168.1.103/16  2 32 = 4 billion unique numbers (world population 7 billion)

17 UC Berkeley “The Beauty and Joy of Computing” : Internet I (17) Friedland IP Address Allocation IANA (Internet Assigned Numbers Authority) allocates network addresses to entities by delegating to RIRs (Regional Internet Registries).

18 UC Berkeley “The Beauty and Joy of Computing” : Internet I (18) Friedland Count Take a moment and count: How many Internet- connected devices do you own?  0  1  2-5  5-10  More than 10

19 UC Berkeley “The Beauty and Joy of Computing” : Internet I (19) Friedland Problem: No more IP addresses left… Source: Wikimedia Commons

20 UC Berkeley “The Beauty and Joy of Computing” : Internet I (20) Friedland Solution: IPv6  2 128 = 3.403 x 10 38 unique addresses  Issue: Adoption still in progress  Workaround exists: NAT (Network Address Translation)

21 UC Berkeley “The Beauty and Joy of Computing” : Internet I (21) Friedland Domain Name Service DNS is used to resolve names to IP addresses in a decentralized manner

22 UC Berkeley “The Beauty and Joy of Computing” : Internet I (22) Friedland  The Internet is setup for growth using open standards  It is highly failure tolerant due to decentralization  However, issues arise with trying to improve it. Summary and Outlook Internet II (Wednesday):  Routers  Internet Protocols  Vulnerabilities of the Internet  More on Social Implications

Download ppt "The Beauty and Joy of Computing Lecture #15 Internet I UC Berkeley EECS Lecturer Gerald Friedland"

Similar presentations

© 2008 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 1 Chapter 3: Network Protocols and Communications Introduction to Networks.

© 2008 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 1 Chapter 3: Network Protocols and Communications Introduction to Networks.
CST 415 - Computer Networks NAT CST 415 4/10/2017 CST 415 - Computer Networks.

CST Computer Networks NAT CST 415 4/10/2017 CST Computer Networks.
IPv4 to IPv6 Migration strategies. What is IPv4  Second revision in development of internet protocol  First version to be widely implied.  Connection.

IPv4 to IPv6 Migration strategies. What is IPv4  Second revision in development of internet protocol  First version to be widely implied.  Connection.
1 Muhammed Rudman

1 Muhammed Rudman
CSE111: Great Ideas in Computer Science Dr. Carl Alphonce 219 Bell Hall Office hours: M-F 11:00-11:50 645-4739

CSE111: Great Ideas in Computer Science Dr. Carl Alphonce 219 Bell Hall Office hours: M-F 11:00-11:
EEC-484/584 Computer Networks Lecture 3 Wenbing Zhao

EEC-484/584 Computer Networks Lecture 3 Wenbing Zhao
Data Communication And Internet Technology

Data Communication And Internet Technology
Basic TCP/IP Networking

Basic TCP/IP Networking
Understanding Networks. Objectives Compare client and network operating systems Learn about local area network technologies, including Ethernet, Token.

Understanding Networks. Objectives Compare client and network operating systems Learn about local area network technologies, including Ethernet, Token.
Networking and Internetworking: Standards and Protocols i206 Fall 2010 John Chuang Some slides adapted from Coulouris, Dollimore and Kindberg.

Networking and Internetworking: Standards and Protocols i206 Fall 2010 John Chuang Some slides adapted from Coulouris, Dollimore and Kindberg.
1 The Internet Introductory material. An overview lecture that covers Internet related topics, including a definition of the Internet, an overview of its.

1 The Internet Introductory material. An overview lecture that covers Internet related topics, including a definition of the Internet, an overview of its.
Networking Standards. Objectives Identify organizations that set standards for networking.

Networking Standards. Objectives Identify organizations that set standards for networking.
© 2008 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 1 CCNA 5.0 Planning Guide Chapter 5: Network Address Translation for IPv4.

© 2008 Cisco Systems, Inc. All rights reserved.Cisco ConfidentialPresentation_ID 1 CCNA 5.0 Planning Guide Chapter 5: Network Address Translation for IPv4.
EEC-484/584 Computer Networks Lecture 11 Wenbing Zhao (Part of the slides are based on Drs. Kurose & Ross ’ s slides for their Computer.

EEC-484/584 Computer Networks Lecture 11 Wenbing Zhao (Part of the slides are based on Drs. Kurose & Ross ’ s slides for their Computer.
IPv6 Elite Panel Addressing the IPv6 Internet Paul Wilson APNIC.

IPv6 Elite Panel Addressing the IPv6 Internet Paul Wilson APNIC.
Chapter 1 Introduction.

Chapter 1 Introduction.
Management of the Internet

Management of the Internet
1 CS 4396 Computer Networks Lab The Internet. 2 A Definition On October 24, 1995, the FNC unanimously passed a resolution defining the term Internet.

1 CS 4396 Computer Networks Lab The Internet. 2 A Definition On October 24, 1995, the FNC unanimously passed a resolution defining the term Internet.
ITGS Networks Based on the textbook “Information Technology in a Global Society for the IB Diploma” by Stuart Gray.

ITGS Networks Based on the textbook “Information Technology in a Global Society for the IB Diploma” by Stuart Gray.
1 The Internet Introductory material. An overview lecture that covers Internet related topics, including a definition of the Internet, an overview of its.

1 The Internet Introductory material. An overview lecture that covers Internet related topics, including a definition of the Internet, an overview of its.

Similar presentations

Ads by Google