and Mobile Systems Chapter 4 If We Dont Have an iPad App We Dont Have a Business GearUp not competitive without iPad app Lack of knowledge could waste money and time Outsourcing to India Open source ID: 595761
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Slide1
Hardware, Software,and Mobile Systems
Chapter
4Slide2
"... If We Don’t Have an iPad App, We Don’t Have a Business."GearUp not competitive without iPad app
Lack of knowledge could waste money and time
Outsourcing to India? Open source?
What have others done?Conflict between low cost and technical competitiveness
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide3
Study QuestionsQ1: What do business professionals need to know about computer hardware?
Q2: What do business professionals need to know about software?
Q3: Is open source software a viable alternative?
Q4: What are the differences between native and thin-client applications?
Q5: Why are mobile systems increasingly important?
Q6: What characterizes quality mobile user experiences?
Q7: What are the challenges of personal mobile devices at work?Q8: 2023?
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide4
Q1: What Do Business Professionals Need to Know About Computer Hardware?Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide5
Server farmCopyright © 2014 Pearson Education, Inc. Publishing as Prentice Hall
Large collection
of
coordinated serversSlide6
Computer DataCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide7
Important Storage-Capacity TerminologyCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide8
Memory SwappingWhen RAM too small to hold all open programs and data
CPU loads program segments into free memory
If none available, O/S swaps out existing segment, to a disk and copies requested segment to freed space
Swapping slows down computer
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide9
Specifying Hardware with Computer Data SizesCPU speed expressed in hertz
Slow =
1.5
GHz; Fast = 3+ GHz32-bit or 64-bit64-bit for 4+ GB memoryProcessing large spreadsheets, database
files, picture
, sound,
or movie files; using many large applications at same timeCache and main memory are volatileCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide10
Q2: What Do Business Professionals Need to Know About Software?Basic Categories of Computer Software
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide11
What Are the Major Operating Systems?Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide12
What Are the Major Operating Systems? (cont'd)Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide13
Windows 8 Metro InterfaceCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide14
VirtualizationHost operating system
Runs
one or more operating systems as
applicationsPC virtualizationPersonal computer hosts several different operating systemsServer virtualization
Server
computer hosts other server
computersMakes cloud computing feasibleVirtual desktopAllows access from any computer a user has authorization to use
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide15
Virtualization: Windows Server Computer Hosting Two Virtual MachinesCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide16
How Virtual Machine VM3 Appears to a UserCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide17
Own Versus LicenseLicense
Right to use specified number of copies
Limits vendor’s liability
Site LicenseFlat fee to install software product on all company computers or all computers at a specific site
Open source software
Free usage license
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide18
What Types of Applications Exist, and How Do Organizations Obtain Them?Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide19
What Is Firmware?Computer software installed on read-only memory
Printers, print servers, communication devices
Coded like other software
Can be changed and upgraded
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide20
Using MIS InClass 4: Place Your Bets Now!Three-way race for market share – Apple, Google, Microsoft
Merging software, hardware, personal communication devices, movies, etc.
All have deep technical staff, knowledge, patents, and plenty of money
Who will win?Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide21
Three-way ComparisonCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide22
Q3: Is Open Source Software a Viable Alternative?GNL —
G
eneral
Public LicenseStandard for open source softwareSuccessful open source projects
Open
Office
FirefoxMySQLApacheUbuntuAndroidCassandra Hadoop
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide23
Some TermsOpen source
– source available to public
Source code
– computer code written by humans and understandable by humansMachine code
11010010100101111110011101111001000111....
Closed source code
– highly protected and only available to trusted employees and carefully vetted contractorsCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide24
Why Do Programmers Volunteer Their Services?It’s fun
Freedom to choose projects
Exercise creativity on interesting and fulfilling projects
Exhibit one’s skill to get a jobStart a business selling services
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide25
How Does Open Source Work?Collaboration of many programmersExamines source code and identifies a need, creates new feature or redesigns existing feature, or fixes a problem
Code evaluated and extended by others
Iteration, peer reviews
and well-managed project yield high-quality codeCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide26
Source Code SampleCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide27
Is Open Source Viable? Depends on requirements and constraints of situation
“
Free” open source
software require support and operational costs, could cost more than
licensing fee
Future
will involve blend of both proprietary and open source softwareCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide28
Q4: What Are the Differences Between Native and Thin-client Applications?Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide29
Developing Thin-client ApplicationsBrowser handles idiosyncrasies of operating system and underlying hardwareApplications written by professional programmers, technically oriented web developers, or business professionals
Cheaper
to develop
Limited by capabilities of the browserThin-client applications via Web go to www.picozu.com/editor
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide30
One Consequence of Browser Differences for Thin-Client ApplicationsCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide31
Which Is Better?Depends:
Strategy, goals, application requirements, budget, schedule, tolerance for managing technical projects, need for application revenue, etc.
Thin-client applications cheaper to develop and maintain, but may lack wow factor
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide32
Ethics Guide: “Because It’s Where the Money Is . . .”
Hackers target where money is
Windows targeted more than Mac
Malware: Viruses, Trojan horses, Spyware, AdwareApple better get ready for avalanche of attacks.
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide33
Q5: Why Are Mobile Systems Increasingly Important?Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide34
Elements of a Mobile Information SystemCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide35
Q6: What Characterizes Quality Mobile User Experiences?Primary characteristics of
quality mobile applications
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide36
Chrome-less Mobile Windows Store ApplicationCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide37
Example of Application ScalingExample of IE10 Charm Scaling
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide38
Example Use of Web Page Data Declared as SharedCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide39
Mobile Systems Cloud UseCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide40
Kindle Fire Roaming MessageCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide41
Q7: What Are the Challenges ofPersonal Mobile Devices at Work?Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide42
Six Common BYOD PoliciesCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide43
Advantages of Example BYOD PoliciesCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide44
Q8: 2023?Can Microsoft take Office 365 to mobile market via its Skype acquisition?
PC
mules rare
Large-screen computing/connectivity devices available everywhereUse public device to connect to cloudWon’t need desktop office applications
Cost performance issues of desktop virtualization will be gone
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide45
Ethics Guide: Churn and BurnConspiracy among
hardware and software
vendors?
Hardware vendors create new, faster computersSoftware vendors create new products with more features
only needed by some
users
Time-consuming to learnChurningNew software needs new hardware to run.New hardware becomes obsolete fast.
Repeat steps 1 and 2.
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide46
Ethics Guide: Churn and Burn (cont’d)Products have defects
Vendors turn these into a sales advantage
Should users accept these problems?
Should they rise up in protest?
What should vendors do?
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide47
Guide: Keeping Up to SpeedRelentless pace of technology change
21
st
century business professional cannot bury head in sandUse knowledge of IT to gain competitive advantageDon’t ignore technologyRead articles, technology ads, attend seminars, workshops
Get
involved as
user representative in technology committeesCopyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide48
Guide: Questioning Your QuestionsLearn how
to
discern
judgment quality and evaluate answers. Most difficult and creative tasks are generating questions and formulating strategy for getting answers. Be able to ask good questions and obtain
good answers.
Learn
about new IS alternatives and how to apply them.Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide49
Guide: Questioning Your QuestionsQuestions can be bad in three ways:
Irrelevant: Answer won’t tell you why
Dead
: Provide no insight into subject Asked wrong
source
Don’t ask “What is it?” questions of valuable or expensive sources.
Ask: “How can I use it? Is it the best choice for our company or situation?”Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide50
Active Review
Q1: What do business professionals need to know about computer hardware?
Q2: What do business professionals need to know about software?
Q3: Is open source software a viable alternative?Q4: What are the differences between native and thin-client applications?
Q5: Why are mobile systems increasingly important?
Q6: What characterizes quality mobile user experiences?
Q7: What are the challenges of personal mobile devices at work?Q8: 2023?
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide51
Case Study 4: The Apple of Your iTripled market share in three years
Second largest public company in world
Pioneered well-engineered home computers and innovative interfaces for students and knowledge workers
Every sales success feeds other sales successes
Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide52
Case Study 4: The Apple of Your i (cont’d)Copyright © 2014 Pearson Education, Inc. Publishing as Prentice HallSlide53