38821253 MIS IT Infrastructure

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Presented By:

Deepali Bhardwaj


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IT InfrastructureDefining IT infrastructure Evolution of IT infrastructure: 1950-2009

Electronic accounting machine era: 1930-1950 General-purpose mainframe and minicomputer era: 1959 to present Personal computer era: 1981 to present Client/server era: 1983 to present Enterprise Internet computing era: 1992 to present Cloud computing era

: 2000 to present


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Multi-Layered C/S Network

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Management Information Systems

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Technology Drivers Of Infrastructure Evolution Processing power has increased over the years From 75 megahertz to 4 gigahertz Over the years, cost of Digital Storage has decreased and capacity increased Network economics Social and business value of digital networks enables rapid multiplication of links among network members Power of network grows as a function of number of people in the network Increasing returns to scale for the member

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Declining communications costs and the Internet Standards and network effects


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Infrastructure ComponentsData Mgmt Internet H/W

O/S

SIs

N/W Telecom

S/W Apps


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Hardware Platform Trends And Emerging TechnologiesWhile cost of co ti is lo er, i frastr ct re costs have ex a e The e er i o ilei ital latforCell ho es, s art ho es ( lac erry, i ho e) have ass e ata tra s issio , We s rfi , e- ail a I ties Net oo s: s all, lo -cost li ht ei ht ote oo s o ti ize forireless co icatio a core ti tas s co


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H/W Platform Trends and Emerging TechnologiesClo co ti ( tility co ti )Data er a e tly store i re ote servers, accesse a ate over the I ter et y sers Purchase co uti o er a e a or utility co uti ) Re uces ris of over-i vest e t Flexi le i frastructure ay as er use (o -


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Hardware Platform Trends and Emerging TechnologiesVirtualization and multicore processorsPresents computing resources so that they can be accessed in ways that are not restricted by configuration Simultaneously run more than one operating system onthe same machine Increases server utilization rates from 10-15 to 70 percent ofcapacity Multicore processors: reduced power requirements, enhanced performance


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H/W Platform Trends and Emerging TechnologiesGri co utiCo ects eo ra hically re ote co uters i to a si le et or to co i e rocessi o era create virtual superco puter Provi es cost savi s, spee , a ility

Auto o ic co putiSyste s that ca co fi ure, opti ize the selves, heal the selves he ro e , a prot

ect the selves fro outsi e i truders Si ilar to self-updati a tivirus soft are;Apple a d icrosoft oth use auto atic updates


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Software Platform Trends and Emerging TechnologiesLinux and open-source software Java is everywhereObject oriented programming language Platform independent

Software for enterprise integrationData exchange for multiple systems through single software hub Web services andservice-oriented architecture (SOA)

XML(eXtensible Markup Language): applies self-describing tags to data in web documents Allows automatic transfer of data, manipulation of data and execution ofoperations

Ajax, Mashups, Web 2.0, and Web-based software applications


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Software OutsourcingSoftware packages and enterprise software Software as a service (SaaS) Softwareoutsourcing


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Management IssuesDealing with infrastructure change Management and governance Making wise infrastructure investmentsCompetitive forces model for IT infrastructure investment

Total cost of ownership of technology assetsCost components: hardware / software acquisition, installation, training Hidden

costs: support, maintenance, downtime, utility costs


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Management IssuesCompetitive Forces Model for IT Infrastructure

There are six factors you can use to answer the question, How much should our firm spend on IT infrastructure?


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Corporate Network Infrastructure

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Communications NetworksSignals: digital vs. analog Types of networks Local area networks Metropolitan and wide area networks Physical transmission media Twisted wire Coaxial cable Fiber optics cable Wireless transmission : radio signals Long distances Satellites,relay stations to microwave signals10/6/2010 Management Information Systems 17


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The InternetInternet addressing and architecture

Each computer on Internet given a numeric IP address The Domain Name System: converts IP addresses to domain names195.128.15.11 to an easily read address such as www.USAToday.com

Internet architecture and governanceTranscontinental high-speed backbone of networks in the range of 45 Mbps to 2.5Gbps Internet architecture board, Internet Corporation for Assigned Names and Numbers, World Wide Web Consortium

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The InternetThe future Internet: IPv6 and Internet2128 bit addresses in IPv6 Internet2 a new, robust high band width version of Internet Digital libraries, effective routing practices, different levels of service

Internet services

E-mail, instant messaging, chatting, Telnet, FTP, WWW

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The InternetThe World Wide WebHypertext Web servers Searching for information on the Web Internet based groupware and electronic conferencing software Web 2.0 : Wiki, Blogs, RSS

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The InternetIntranets and extranets Technologies and tools for communication and e-businessE-mail, chat, instant messaging, Usenet, and electronic discussions Groupware for collaboration Internet telephony : VoIP Virtual private networksSecure, encrypted private network Point to point tunneling10/6/2010 Management Information Systems 21


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The Wireless RevolutionCellular network standardsGlobal System for Mobile Communication(GSM) Code Division Multiple Access(CDMA)

Cellular Generations1G: Analog networks 2G: Digital, circuit switched networks, primarily used for voice transmission 2.5G: Packet switched, data transmission speed 50 144 Kbps 3G

: Digital, high speed, high bandwidth, 384 Kbps for mobile users and 2 Mbps forstationary users

Mobile wireless standards for Web accessWireless Application Protocol(WAP) iMode

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The Wireless RevolutionWireless computer networks and Internet accessBluetooth (802.15) for personal area networks Wi-Fi (802.11) for LANs802.11b: wireless Internet access; vulnerable security Access point is a box consisting of a radio receiver / transmitter and antennas that links to wired network Wireless Network Interface Cards

WiMax (802.16) access range of 31 miles; suitable for providing broadband Internet access; robust security Broadband cellular wireless and emerging wireless services

RFID and wireless sensor networks10/6/2010 Management Information Systems 23


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Assignment Sec Ay Roll Nos 1

15 : Salesforce.com, Q2 y Roll Nos 16 30 : Salesforce.com, Q4 y Roll Nos 31-46:Amazon case, Q2 y Roll Nos 47 60, Amazon case, Q1

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Assigy Roll Nos 62

t S cB

77 : Salesforce.com, Q2 y Roll Nos 78 93 : Salesforce.com, Q4 y Roll Nos 94- 109: Amazon case, Q2 y Roll Nos 110 122, Amazon case, Q1

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Documents

38821253 MIS IT Infrastructure