ct 1505 recent developments in networks instructor: dr. najla al-nabhan feb, 2015
DESCRIPTION
Course Instructor Address Office Hours Office Number and Location RankName KSU.EDU.SA Sunday 12-3 Monday12-1 Office #: nd Flour, Bldg 1, Olishah Campus, KSU Assistant Professor Dr. Najla Al-Nabhan Course Website:TRANSCRIPT
CT 1505 Recent Developments in
Networks Instructor: Dr. Najla Al-NabhanFeb, 2015
Course OverviewCourse Title: Recent Developments
in Networks Course Code: CT 1505
Course Level: Fifth Course Co-requisite: CT1505
Lecture Time: Sunday 9:00 am-
12:00 pm Credit Hours: 3(3+ 0)
Course Instructor
Name RankOffice
Number and Location
Office HoursEmail
Address
Dr. Najla Al-Nabhan
Assistant Professor
Office #: 321 2nd Flour, Bldg 1, Olishah Campus, KSU
Sunday 12-3Monday12-1
Course Website:
http://fac.ksu.edu.sa/nalnabhan/course/82353
Course Syllabus Aimed to impart
Facts of network technologies developments (historical background)
New and old network technologies; Recent advanced network technologies; Recent advancements indicators; Life cycle of networking standards; Future expectations; User acceptance factors to recent developments; Evaluation of recent applications.
Grading Overview Homework Assignments: 10% Quizzes: 15% Class Participation: 5% Mid-terms: 30% Final Exam: 40%
One Quiz and/or tutorial per week, schedule will be announced soon
Course Textbook and ReferencesMain Course Reference:
Lectures & Assignments (reading, videos, homework) Discussion Groups, Tutorials, Problem Solving, Debates, etc. Selected papers and book chapters.
Additional Resources: Text Book: Jim Kurose and Ross “Internetworking: A top-
down Approach” Technical reports and videos.
Lecture 1: Facts of network technologies developments
(A historical background)
Computer Networks Computer networks? A group of interconnected computers-Represent a logical Result of the evolution of two of the most important scientific and technical branches of modern civilization – Computing and Telecommunications technologies.
From Batch Processing Toward Time-Sharing
Queuing Theory
1. Centralized system based on mainframe2. Multi-terminal System 3. Time sharing
1957
The Necessity: Time and Resource Sharing“Time sharing tried to make it possible for research institutions
to use the processing power of other institutions computers when they had large calculations to do that required more power, or when someone else's facility might do the job better”
Networking History Origins of Internet are hazy, visit www.nethistory.info for interesting
reading Vint Cerf: “Internet Father “
Related Definitions and terminologies The Internet is a global system of
interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to link several billion devices worldwide.
Packet switching is a digital networking communications method that groups all transmitted data – regardless of content, type, or structure – into suitably sized blocks, called packets.
The Advanced Research Projects Agency Network (ARPANET) is one of the world's first packet switching networks, the first network to implement TCP/IP, and was the main progenitor of what was to become the global Internet. (later DARPA)
Related Definitions and Concepts ARBA network was initially funded by the
Advanced Research Projects Agency (ARPA, later DARPA) within the U.S. Department of Defense for use by its projects at universities and research laboratories in the US.
The packet switching of the ARPANET, together with TCP/IP, would form the backbone of how the Internet works.
The ARPANET
Growth of the ARPANET (a) December 1969. (b) July 1970. (c) March 1971. (d) April 1972. (e) September 1972.
Related Definitions and Concepts The packet switching was based on concepts and
designs by: American engineer Paul Baran, scientist Donald
Davies and Lawrence Roberts of the Lincoln Laboratory.
The TCP/IP communication protocols were developed for ARPANET by computer scientists Bob Kahn and Vint Cerf, and also incorporated some designs from Louis Pouzin.
Networking History 1961: Kleinrock - queuing theory shows effectiveness of packet-switching 1964: Baran -packet-switching in military applications for survivable
networks 1967: ARPAnet conceived by Advanced Research Projects Agency 1969: First ARPAnet node operational
Prof. Kleinrock sends a message across from UCLA to Stanford 1972:
ARPAnet demonstrated publicly NCP (Network Control Protocol) first host-host protocol First e-mail program ARPAnet has 15 nodes
Networking History... 1970: ALOHAnet satellite network in Hawaii (CSMA
developed), later connects to ARPANet 1973: Bob Metcalfe’s PhD thesis proposes Ethernet
(CSMA/CD developed) 1974: Cerf and Kahn - architecture for interconnecting
networks: the word “Internet” makes its appearance from Cerf’s writings
Networking History... Time sharing became difficult since different machines
had different operating systems, versions and programs. However, these led to development of Internet
Reference Models Vinton Cerf. Bob Kahn, and (…….) developed TCP/IP Cerf and Kahn’s internetworking principles:
simplicity, autonomy - no internal changes required to interconnect networks
best effort service model stateless routers decentralized control define today’s Internet architecture
Networking History... 1978: TCP/IP v4 was released
Aimed to interconnect different kinds of networks 1979: ARPAnet has 200 nodes 1983: deployment of TCP/IP in ARPAnet 1983: SMTP e-mail protocol defined 1983: DNS defined for name-to-IP-address translation 1985: FTP protocol defined 1988: TCP congestion control 100,000 hosts connected to confederation of networks
Networking History... Early 1990s: WWW
Hypertext
HTTP: Tim Berners-Lee develops WWW an Internet based hypermedia initiative, and specifies URLs, HTTP and HTML which became basis for today’s WWW
1994: Mosaic (Univ. of Illinois), later Netscape the major browsers until late 1990’s
late 1990’s: commercialization of the WWW, with introduction of HTTPS e-commerce is realized
Late 1990’s: 50 million computers on Internet 100 million+ users backbone links running at 1 Gbps
Hosts on the Web
Internet Users: By language
Internet Content: By language
Questions Which appeared earlier than the other: WANs
or LANs? Why? Reference:
http://media.wiley.com/product_data/excerpt/83/EHEP0009/EHEP000983.pdf
Summaries this video in Arabic and English https://www.youtube.com/watch?v=9hIQjrMHTv4