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MIS 411 Part of Chapter 8

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Direct satellite broadcasting creating new wireless options. ... Example: Verizon, Comcast Cable, Direct TV, COX. Internet and telecommunications software firms ... – PowerPoint PPT presentation

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Title: MIS 411 Part of Chapter 8


1
MIS 411Part of Chapter 8 10
  • Presented by
  • Kelvin N. Doan

2
Objectives
  • What are the organizational approaches to
    computing?
  • What aspects of the convergence of computing and
    communications are important for understanding
    telecommunications?

3
1. What are the organizational approaches to
computing?
  • 1. Centralized Computing
  • 2. Personal Computing
  • 3. Distributed Computing
  • 4. Network Computing

4
Centralized Computing
  • A single mainframe that performs the process for
    multiple users.
  • Maintains and controls all the peripherals such
    as printers.
  • Terminals connected to the mainframe were called
    dumb terminals because?
  • Centralized functions are needed for many
    business operations.

5
Personal Computing
  • Computers that are not connected to a network and
    are used for individual work. (word processing,
    spreadsheet, presentations, personal calendars).
  • PCs were weak, having awkward user interfaces,
    limited software capabilities, and data and
    storage only on diskette.
  • Practical usage and affordable on a wider scale.

6
Distributed Computing
  • More than one workstations are connected to share
    data and computing resources.
  • Resources such as data, messages, work products,
    printers, etc.
  • More accessibility
  • Still stays connected even part of the network is
    down.
  • More restricted environment than personal
    computing.

7
Network Computing
  • Multiple network computers are linked to a
    central server that controls their operation and
    provides links to other servers.
  • Easier to administer than distributed computing
  • Networks of stripped-down personal computers
    called network computers (NCs) or thin
    clients.
  • Programs and data are all stored on centralized
    servers

8
NCs Debate
Hey Bill, whats a floppy disk?
Scott McNealy CEO, Sun Microsystems
Scott, Its a way to steal company secrets.
9
Computers in a Networked World
Basic idea, advantages, disadvantages?
10
(No Transcript)
11
2. The important aspects of computing and
communications
FedEx Case Analysis
The key successes of FedEx
  • Promised on-time delivery
  • To maintain a high degree of reliability in its
    shipping
  • Flexibility and convenience for customers
    (e-business)
  • Developed a service quality index
  • National Semiconductor mainframe reduces distri.
    cost
  • Applies telecommunications in package delivery

12
Applying Telecommunications in Business
Telecommunications
  • Transmission of data between devices in different
    locations.
  • Typical experiences such as watching TV,
    listening to the radio, and using the telephone
    (sound images).
  • Purpose is to reduce or eliminate time delays

13
Vital Role of Telecommunications in E-Business
  • Telecommunications essential to
  • E-retailers
  • E-marketplaces
  • Internet content providers
  • Internet service providers (ISPs)
  • Application service providers (ASPs)
  • Telephone and cable companies
  • Telecommunication equipment manufacturers
  • Internet and telecommunications software firms

14
E-retailers, E-marketplaces, Internet content
provider
  • E-retailers Companies that sell other companies
    products over the Internet. Example Amazon.com,
    Office Depot, Staples, Gateway Inc.
  • E-marketplaces Uses Internet to create
    marketplaces for buyers and sellers. Example
    Ebay
  • Internet content provider Provides information
    that is made available and possibly sold on the
    Internet. ProQuest, Lexnus-Nexus Database

15
Internet service providers (ISPs), Application
service providers (ASPs
  • Internet Service Providers Providing links and
    computer processing consumers and firms need in
    order to use the Internet. Also provide
    Web-hosting services that operate Web sites.
  • Example Verizon, Comcast
  • Application Service Providers Operate business
    application software on their own servers for
    other companies.
  • Example WebCT.

16
Convergence of Computing and Communications
  • Reliance of telecommunications on computers
  • Role of telecommunications in computing
  • New wired and wireless transmission
  • New combinations of data and computing

17
Reliance of telecommunications on computers
  • In the old days, established connections by
    plugging wires in to a switchboard.
  • Make long distance connections electronically
  • Monitor traffic on the network and balance the
    loads
  • Downside of bugs in computer programs causing
    long telephone systems to fail

18
Role of telecommunications in computing
  • FedEx example, utilized handheld computers to
    process then hooked into a computer in the
    truck.
  • Transmitted data to a central database where
    other processing occurred.
  • Users often satisfy with the work being done
    conveniently.

19
New wired and wireless transmission
  • Direct satellite broadcasting creating new
    wireless options.
  • Wireless transmission of radio and television
    broadcasts provide by cable broadcasting.
  • Transferring data through wire has led to the
    emergence of portable telephone and data
    transmission through satellites.
  • Fiber optic cable has increased amount of data by
    wired transmission.

20
New combinations of data and computing
  • Electronic mail takes some of the function of a
    telegraph but uses a computer to generate and
    receive the message.
  • Voice mail uses a computer to control recording
    and retrieval of the missing message.
  • Video conferencing applies the idea of video from
    television broadcasting, wouldve been telephone
    conversations.

21
Telephone and cable companies and
  • These companies install, operate, and maintain
    telephone, cable and other communications
    equipment.
  • Example Verizon, Comcast Cable, Direct TV, COX.

22
Internet and telecommunications software firms
  • Companies that provide software and data
    processing services used by firms that create and
    operate web sites.
  • Example ColdFusion, MS FrontPage, MS SQL Server
    2000, Oracle, Etc.

23
Figure 10.1
24
Figure 10.2
Local wireless entertainment broadcasting is
being superseded by transmission through cable
and at the same time cable is seeing new
competition from satellite television.
25
Telecommunications Pre-Recap
1
2
5
Share Information
Individual Usage
Improve in Business World
4
3
Secure
Network
26
Questions Discussion
  • Which of the following is NOT an advantage of
    distributed computing?
  • a. improves coordination
  • b. helps in data sharing
  • c. permits sharing of printers
  • d. requires less control and administration

Answer D
27
Questions Discussion
  • Which one of the followings is company is an
    example of E-retailer?
  • a. Amazon.com
  • b. Office Depot
  • c. Staples
  • d. Gateway Inc.
  • e. All of the above

Answer E
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