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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

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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