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Evolution of IT Infrastructure & Infrastructure Components

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on 10 December 2014

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Transcript of Evolution of IT Infrastructure & Infrastructure Components

Evolution of IT Infrastructure &
Infrastructure Components

Group Members:

Cloud Computing Era
Abdul Majid Khan
AhsanUllah Khan
Ayesha Shariq
Hira Sarfraz

Evolution of IT Infrastructure
General Purpose Mainframe & Mini computer Era (1959- Present)
Personal computers Era (1981 to Present)
Client/ Server Era (1983 to Present)
Electronic accounting machine era
General purpose mainframe and mini computer era
Personal computer era
Client/ server era
Enterprise Internet computing era
Cloud computing era
Electronic Accounting Machine Era
The 1st era of business computing used specialized machines that could sort computer cards into bins, accumulate total and prints report
Software programs were hardwired into circuit boards and they could be changed by altering the connection on patch board
The first commercial all electronic vacuum tube computers appear in 1950s with the introduction of UNIVAC computers and the IBM 700 series.
In 1965, the general purpose main frame computers truly come into its own with the introduction of IBM 360 series
The mainframe era was a period of highly centralized computing system under the control of professional programmers and systems operator
This pattern began to change with the intro of minicomputers produce by DEC in 1965
The 1st truly personal computer appeared in 1970s this machine had only limited distribution to computer enthusiasts
This appearance of the IBM PC in 1981 is usually credited as beginning of PC era because this machine was the 1st to widely adopted in American businesses
In client/ server computing, desktop or laptop computers called clients networked to server computer that provide the client computer with variety of services and capabilities
The client is the user point of entry while server provides communication among the clients
Server refers to both the software applications and physical computer on which network software runs
Cloud Computing
Cloud computing refers to a model of computing in which firms and individuals obtain computing power and software applications over the internet, rather than purchasing their own hardware and software.
Hardware firms IBM, HP, and Dell are building huge, scalable cloud computing centers that provide computing power, data storage, and high-speed Internet connections to
firms that rely on the Internet for business software applications.

Early 1990's
Internet Protocol
Enterprise Internet Computing Era
Enterprise wide network
IT Infrastructure Components
Computer hardware platforms
* Serve as foundation or base
* Deal mostly with Hardware
* X86 PC is the largest hardware platform
Hardware Platforms
* Hardware platform has a unique machine language
* All software must be in the binary coded machine language of that CPU
* In 2010 U.S firms spend $ 109 billion on Computer hardware
It includes client machines (Desktop, Mobile computing devices)

Server machines

Client machine use Intel or AMD microprocessors

In 2010, 90 million PC’s sold to US and 400 million world wide

Server market uses Intel or AMD processors in form of Blade servers in racks

Also include SUN and IBM power chips

Blade servers
They are ultra thin computers

It consist of circuit board with processors and network connections that are stored in racks

Take less space than box based servers

Secondary storage may be provided

Intel is the standard processor in the market

Unix and Linux might use SUN or IBM processors

IBM repurposed its main frame systems
Operating systems Platform
A Platform is an underlying computer system on which application programs can run

On personal computers, Windows and Mac OS

On enterprise servers, IBM S/390

Operating systems
Server level: 75% run Windows; 25% run Unix or Linux

Client level:
*90% run Microsoft Windows (XP, 2000, CE, etc.)
*Handheld device OS’s (Android, iPhone OS)
*Cloud computing OS’s (Google’s Chrome OS)

Microsoft Windows is capable of providing enterprise wide operating system and network services

Unix and Linux are scalable, reliable and less expensive

Providers of Unix are IBM,SUN and HP

At client level,90% of PC’s use Windows such as Window XP

Google chrome OS provides light weight operating system for cloud computing

Accessed through chrome web browser

Launch Window Azure

Android is a mobile operating system develop by Android,Inc.

Conventional operating system is designed around mouse and keyboard

IPhone OS features Multitouch interface

Consulting and System Integration Services
Internet Platforms
Legacy system
Outdated computer systems, programming languages
or application software
Legacy system
Windows 9x
Windows XP

Why Organizations Keep Legacy Systems
System is working satisfactorily

High replacing cost

System working not understood

Replacement is perceived as an easy task

Software Integration
Integrating new IT infrastructure with the firm’s
older legacy system

Factors behind Software Integration
Too much risk

Prohibitive cost

User reluctance

Speed of delivery
Leading consulting firms

Accenture, IBM Global Services, Electronic Data
Systems, HP Technology Solutions, Infosys and
Wipro Technologies
Internet Platforms
Web Hosting Service
Web-Based Application
e.g. webmail
API (Application Programming Interface)
e.g. Amazon’s API
Internet Platforms Types
Access API Platform
Provided in the form of web services API
e.g. Google Maps API

PLUG-IN API Platform
Used in end user applications e.g. Photoshop

Rent versus Buy Decision

Making Wise Infrastructure Investments
Full transcript