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Mgt 20600: IT Management & Applications Software. Tuesday February 14, 2006. Reminders. Reading Fundamentals text, Chapter Two, Software section Homework Homework Two due Friday, 2/24 by 5pm Next week’s class session: Application Software. Thin Clients.

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Mgt 20600: IT Management & ApplicationsSoftware

Tuesday

February 14, 2006


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Reminders

  • Reading

    • Fundamentals text, Chapter Two, Software section

  • Homework

    • Homework Two due Friday, 2/24 by 5pm

  • Next week’s class session: Application Software


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    Thin Clients

    • Computers connected to a server in a network and have no hard drives

    • Thin-client sales grew 46% from 2004 to 2005

    • Advantages

      • Support telecommuting

      • Better security

      • Easier administration

        • Faster and easier backups

        • Efficient disaster recovery

      • Less expensive

        • Can cut costs up to 70%

        • Thin client model has 35% to 40% lower TCO overall

      • Centralized data



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    Thin Client Computing

    What is the most compelling business value case for thin client computing?


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    Personal Computers

    • Demise of the Desktop?

      • Laptop to Desktop ratio in corporations

        • 1 in 5 in 1999

        • 1 in 3 in 2005

        • 1 in 2 in next few years

    • Why?

      • Mobility!

        • Outside and inside of workplace

      • Changes in work habits

        • Used on the road, in the home, into meetings

        • Facilitate collaboration as well as email access

      • Wireless connectivity improvements

      • Battery life improvements

      • Price/Performance gap between laptops and desktops has narrowed considerably

      • Availability of workstation-class laptops for computing intensive tasks like software development and computer-aided design

      • Laptop reliability has improved

    • Laptop concerns

      • Security!


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    PC Virtualization

    • PC hardware moved into data center as part of PC blades

      • Fit into a chassis that can be centrally managed

      • Several users can share a single blade

      • Simplifies PC management

    • Thin client on desktop that functions as an extended keyboard, monitor, and mouse


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    Servers

    • Midrange computers in data center that provide applications, web services, and storage to client devices

    • Defining features

      • Use faster, multi-core processors than pc’s

        • 64 bit processors

      • Often run Unix or Linux as their operating systems

      • Often deployed in server farms or blades for easy management and flexibility

      • Less costly than mainframes

      • Ability to load balance


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    Mainframes

    • Large, very fast computers that support the enterprise

      • Many legacy systems run on mainframes

      • Known for reliability and scalability

      • Can replace many midrange servers and can cut IT staff costs as a result



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    AARP Mainframe Example

    • Members

      • 35 million members

      • 76 million baby-boomers preparing for retirement

    • Central customer database

      • Can be accessed by

        • Members

        • Trading partners

          • Insurance providers

          • Retirement communities

    • Technology

      • Mainframe used for customer database

        • Centralized

          • Member information can be maintained and secured independently of the numerous IT applications that use it

        • Reliable

        • Scalable

          • Will support increasing numbers of transactions as membership grows

        • Continuously updated

          • Makes it easier to market products and services to its members

        • Application-independent

          • Common interface to the database for suppliers

          • Standard method for integrating applications with the database


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    What a SuperComputer Looks Like

    Terabyte: A thousand billion bytes or a thousand gigabytes

    Gigaflop: One billion floating point operations per second


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    Corporate Supercomputing

    • Ping Inc., golf club maker

      • Uses supercomputer to run simulations of golf club designs

      • Has drastically reduced development time

    • Goodyear Tire & Rubber Co.

      • Uses supercomputing for tire simulations

      • Reduces amount of money spent on building physical tire prototypes, from 40% to 15% of the research and development budget

    • Supercomputing also supports

      • Digital animation

      • Bioinformatics

      • RFID chips and the huge databases they create


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    Overview of Software

    • Computer programs: sequences of instructions

    • Two Types

      • Systems software:coordinates the activities of hardware and programs

      • Application software: helps users solve particular problems


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    Supporting Individual, Group, and Organizational Goals

    • Sphere of influence: the scope of problems and opportunities addressed by a particular software application

      • Personal

      • Workgroup

      • Enterprise


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    Software: Operating System

    • When selecting an operating system, you must consider the current and future requirements for application software to meet the needs of the organization. In addition, your choice of a particular operating system must be consistent with your choice of hardware.


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    Systems Software: Operating Systems

    • Operating system (OS): set ofprograms that control the hardware and act as an interface with applications

    • Common hardware functions

      • Get input (e.g., keyboard)

      • Retrieve data from disks and store data on disks

      • Display information on a monitor or printer



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    Operating Systems

    • User interface

      • Allows individuals to access and command the computer system

      • Command-based user interface: uses text commands

      • Graphical user interface (GUI): uses icons and menus to send commands to the computer system

      • Bringing Vista to life


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    Operating Systems

    • Hardware independence

      • Application program interface (API): allows applications to make use of the operating system

    • Memory management

      • Control how memory is accessed and maximize available memory and storage


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    Operating Systems

    • Processing tasks

      • Multitasking: more than one program running at the same time

      • Time-sharing: more than one person using a computer system at the same time

      • Scalability: ability to handle an increasing number of concurrent users smoothly

    • Networking capability: features that aid users in connecting to a computer network


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    Operating Systems

    • Access to system resources

      • Protection against unauthorized access

      • Logons and passwords

    • File management

      • Ensures that files in secondary storage are

        • Available when needed

        • Protected from access by unauthorized users



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    Linux: Personal Operating System

    • Novell’s Linux Desktop 10

      • Designed to go head-to-head against Windows

      • Includes

        • Desktop operating system

          • Desktop search feature

          • Desktop note-taking technology

        • OpenOffice.org office productivity suite

        • Mozilla Firefox

        • Instant-messaging client

        • Open-source collaboration client

        • F-Spot personal photo management application

        • Technical support

      • Working with software vendors to develop more applications for Linux

    • HP delivers Linux laptop


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    Linux: Workgroup and Enterprise Operating System

    • Open source operating systems (Linux)

      • Increasing comfort level with this alternative

      • Dominates as server operating system

      • Why?

        • Lower total cost of ownership

        • Lower capital investment

        • Greater reliability and uptime compared to commercial alternatives

        • Greater flexibility and control

        • Faster, cheaper application development


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    Linux Example

    • Industrial and Commercial Bank of China (ICBC)

      • China’s biggest bank

      • $640 billion in total assets

      • 100 million individuals as customers

      • 8.1 million corporate accounts

    • Linux deployment

      • Plans to deploy Linux on servers across its network of 20,000 national branches

      • Will use Turbolinux Inc.’s Turbolinux 7 DataServer operating system

      • Will support front-end banking operations

      • 390,000 employees will be using terminals to access applications hosted on Linux servers on a daily basis

    • Why Linux?

      • Chosen because existing applications (developed in-house) run on Unix

      • Easier to migrate applications to Linux than Windows

      • Need better software performance

      • Need better vendor support

      • Lower operating costs


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