Management Information Systems INFO 6240 MBA Programme Management Center IIUM

1
Management Information SystemsINFO 6240MBA
ProgrammeManagement Center / IIUM
B

• Ahmed M. Zeki
• amzeki_at_iiu.edu.my
• Mar - May 2007

2
INTRODUCTION

• The Web and Internet are a part of every aspect
  of your life
• Television
• Magazines
• B2C e-commerce
• World Wide Web (Web) multimedia-based
  collection of information, services, and Web
  sites supported by the Internet
• Internet vast network of computers that
  connects millions of people all over the world

3
WWW

• The Web Internet are different
• Many people see them as the same
• The Internet is the infrastructure that makes the
  Web possible
• Web site a specific location on the Web where
  you visit, gather information, and perhaps even
  order products
• Web site address unique name that identifies a
  specific site on the Web
• kict.iiu.edu.my/amzeki/index.htm
• Also called a domain name

4
Web Sites, Addresses, Pages

• Domain name identifies a specific computer on
  the Web and the main page of the entire site
• Web site address is the common nomenclature
• Domain name is the technical nomenclature

5
Web Sites, Addresses, Pages

• Web page a specific portion of a Web site that
  deals with a certain topic
• Sports in the USA Today
• URL (uniform resource locator) an address for a
  specific Web page or document within a Web site
• www.usatoday.com/sports/sfront.htm
• The technical term for a Web page address

6
Web Sites, Addresses, Pages

• Link (hyperlink) clickable text or an image
  that takes you to another site or page on the Web
• Links help integrate information on the Web
• Most start with
• http// - stands for hypertext transfer protocol
• www stands for World Wide Web
• Beyond, the address is unique

7
Understanding Addresses

• Top-level domain a three-character extension
  that identifies the type of Web site or
  organization
• www.yahoo.com
• www for World Wide Web
• Yahoo is the name
• com stands for commercial organization
• coop, edu, gov, mil, net, org, int, info, biz,
  museum, name, pro

8
Understanding Addresses

• If a two-character extension follows the
  top-level domain
• It provides country of origin
• au stands for Australia
• www.uts.edu.au
• Educational institution in Sydney, Australia
• Web Browser software enables you to surf the
  Web
• Two most popular
• Internet Explorer
• Netscape Communicator

9
Using Web Browser Software

• Both provide the same functionality
• Only the terminology differs
• Important function is keeping track of commonly
  visited sites
• Internet Explorer Favorites
• Netscape Communicator - Bookmarks

10
SEARCH ENGINES

• Search engine facility on the Web that helps
  you find sites with the information and/or
  services you want
• Two types
• Directory search engine
• True search engine
• Directory search engine organizes listings of
  Web sites into hierarchical lists
• Find what you want by continually selecting
  subcategories
• Yahoo! is a directory search engine
• Can also enter search terms to find sites
• Use pluses () and minuses (-) to combine search
  terms or omit them

11
SEARCH ENGINES

• True search engine uses software agent
  technologies to search the Internet for key words
  and then places them into indexes
• Google is the most well-known true search engine
• You ask the question
• Google returns a Web site list

12
INTERNET TECHNOLOGIES

• The Internet makes the Web possible
• It is the infrastructure behind the Web
• Internet backbone major set of connections for
  computers on the Internet
• Network access point (NAP) point on the
  Internet where several connections converge (like
  an airport). Owned and maintained by NSPs.
• Network service provider (NSP) owns and
  maintains routing computers at NAPs and lines
  that connect them

13
The Internet Backbone
14
The Internet Backbone

• Internet service provider (ISP) company that
  provides individuals, organizations, and
  businesses access to the Internet
• At any NAP, an ISP can connect its computers
• You connect to an ISP computer which connects you
  to the Internet

15
Internet Servers

• Many computers are on the Internet
• Yours called a client computer
• Internet server computers computers that
  provide information and services on the Internet

16
Internet Servers
17
Internet Servers

• Web server provides information and services to
  Web surfers
• Mail server provides e-mail services and
  accounts
• ftp (file transfer protocol) server maintains
  downloadable files
• IRC (Internet Relay Chat ) server supports
  discussion groups and chat rooms

18
Communications Protocols

• Information moves on the Internet according to
  communications protocols
• Communications protocol (protocol) set of rules
  that every computer follows to transfer
  information
• Most widely used
• TCP/IP
• http
• ftp

19
Communications Protocols

• TCP/IP (transport control protocol/Internet
  protocol) primary protocol for transmitting
  information over the Internet
• Hypertext transfer protocol (http) supports the
  movement of information over the Web
• File transfer protocol (ftp) the communications
  protocol you use to transfer information from one
  computer to another

20
CONNECTING TO THE INTERNET

• You do so through an ISP
• ISPs can be
• Commercial such as Jaring
• Free such as NetZero (USA)
• Your school
• Your place of work

21
Web Space

• Some ISPs provide Web space
• Web space a storage area where you keep your
  Web site
• If you want a Web site, you need to choose an ISP
  that provides Web space (preferably for free)

22
ISP Considerations

• Do you need Web space?
• Do you need great technical support?
• Is money a consideration?
• Is privacy important to you?

23
Communications Software

• To access and use the Web, you need software
• Connectivity software enables you to use your
  computer to dial up or connect to another
  computer
• Web browser software
• E-mail software for sending and receiving e-mail

24
Telecommunications Hardware

• To access and use the Web, you also need hardware
• Mainly, some sort of modem
• Telephone
• DSL
• Cable
• Satellite

25
Modems

• Telephone modem connects your computer to your
  phone line so that you can access another
  computer or network
• DSL (Digital Subscriber Line) high-speed
  Internet connection using phone lines, which
  allows you to use your phone line for voice
  communication at the same time

26
Modems

• Cable uses your TV cable to deliver an Internet
  connection
• Satellite allows you to get Internet access
  from your satellite dish
• Once you have an Internet connection, you can
  sometimes connect multiple computers to the same
  modem

27
DSL Modem Connection