Bus 290 chapter 5
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BUS 290: Chapter 5. I.T. Infrastructure & Emerging Issues. Objectives. What is I.T. Infrastructure & what are the components? What are the stages & drivers of I.T. infrastructure evolution? What are the current trends in computer hardware & software platforms?

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BUS 290: Chapter 5

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Bus 290 chapter 5

BUS 290: Chapter 5

I.T.

Infrastructure

&

Emerging Issues


Objectives

Objectives

  • What is I.T. Infrastructure & what are the components?

  • What are the stages & drivers of I.T. infrastructure evolution?

  • What are the current trends in computer hardware & software platforms?

  • What are the challenges of managing IT infrastructure & MGMT solutions?


What is it infrastructure

What is IT Infrastructure?

A: “A set of firm-wide services budgeted by management and comprising both human & technical capabilities”

  • Computers of all types & handhelds

  • Telecommunication services that provide data, voice & video connectivity to Employees, C & S

  • Data management

  • Application software

  • Physical facilities

  • IT management services

  • Education, R & D (new projects) … and more


Evolution

Evolution

  • Mainframe/minicomputer (1959 – now)

    • Midrange computer/server

  • Personal Computer (1981 – now)

    • Stand-alone then networked

  • Client/server (1983 – now)

    • Multi-tiered

  • Enterprise Computing (1992 – now)

    • Enterprise wide networks

  • Cloud & Mobile Computing (2000 – now)

    • Shared pool of resources


Drivers

Drivers

  • Moore’s Law … computing power doubles every 2 years.

    • Power of microprocessors doubles or

    • Computing power doubles or

    • Cost drops by 50%

    • Nanotechnology

  • Law of mass digital storage

    • Cost dropping exponentially

  • Metcalfe’s Law

    • Value of network grows exponentially with # users


Drivers 2

Drivers (2)

  • Declining Communication costs (Internet)

    • Ability to use VOIP, data sharing increases

  • Technology Standards

    • ASCII (‘58)

    • COBOL (‘59)

    • TCP/IP (‘74)

    • IBM/Microsoft/Intel PC (‘81)

    • WWW (‘89-’93)


Components

Components

  • Hardware platforms (Mainframes, PC’s & laptops)

    • IBM, HP, Dell, Sun

    • Intel, AMD, IBM

  • Operating Systems

    • Windows (75%), Apple, Unix/Linux (Mainframe)

    • Chrome OS for cloud

    • Android


Components 2

Components (2)

  • Enterprise Software Applications

    • SAP, Oracle

  • Data Management & Storage

    • Oracle, IBM – DB2, Microsoft SQL

    • Seagate, Maxtor, Western Digital

    • EMC – large scale

    • Network storage devices

    • Zettabyte is either …

      • A) what Catherine does to Michael Douglas

      • B) 10^21 bytes


Contemporary h w trends

Contemporary H/W Trends

  • Mobile platforms

  • Grid Computing

    • Akin to cloud

    • Most computers using CPU 25% of time

  • Virtualization

    • Splitting the hardware resources to serve several users (ups usage from 20% - 70+%), virtual drives.


More trends

More Trends

  • Cloud Computing

    • 3 types of service

      • Sell unused computing capacity to other users

      • Using infrastructure & programming tools

      • Using hosted software over a network

    • Public or private Clouds

    • Pay as you go/on demand computing

  • Green Computing

    • Recycling etc

  • Autonomic Computing

    • Self managing systems


Contemporary trends

Contemporary Trends

  • Linux & Open Source S/w

  • S/W for the web

    • Java

      • object-oriented programming

      • Handles text, graphics, sound & video

      • GUI

    • Ajax

      • For web applications to avoid redoing from start

      • Small amounts of data exchanged


Web services

Web Services

  • Software components that exchange info with each other.

  • The can exchange info between different systems regardless of their operating systems.

  • HTML & WYSIWYG

  • XML the basis for web services is an improved HTML

  • Java: applets embedded in web pages


Software outsourcing

Software outsourcing

  • Legacy systems are expensive to replace

  • ERP – Software packages (SAP & Oracle)

  • Software now outsourced

  • Cloud based services:

    • SAAS

    • PAAS

  • Mashups


Mgmt issues

MGMT Issues

  • Growing business  increased needs

  • Platform & Infrastructure Changes

    • Scalability

    • Policies & procedures

    • Contracts with providers

  • Governance issues


Investments

Investments

  • Rent (Lease) or buy

  • Total cost of ownership

    • H/w & S/W

    • Installation & training

    • Maintenance

    • Support & Downtime

    • Infrastructure

    • Space & Energy


Chapter 5 homework

Chapter 5 Homework

  • Both Decision Problems

  • Neither computer based one


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