O'Brien - Intro. to Information Systems

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Transcript O'Brien - Intro. to Information Systems

Module II – Information Technologies
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Computer
Hardware
Real World Cases
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-1
Learning Objectives
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
1. Major types, trends, and uses of
microcomputer, midrange and
mainframe computer systems
2. The major technologies and uses of
computer peripherals for input,
output, and storage
3. Identify and give examples of the
components and functions of a
computer system
4. Identify the computer systems and
peripherals you would acquire or
recommend for a business of your
choice, and explain the reasons for
your selections.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-2
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
End User and
Enterprise Computing
Types of Computer Systems
Use of a Variety of Designs
Real World Case 1…
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing
Click to go to
Case 1
Systems
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3-3
Types of Computers
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
Computer System Categories
–Mainframe Computers
–Midrange Computers
–Microcomputers
–Client-Server Networks
–Information Appliances
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-4
Microcomputer Systems
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Personal Computer (PC)
Professional Workstations
Multiuser Systems
Desktop Systems
Laptops
Workstation Computers
Network Servers
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3-5
Microcomputer Systems
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Boeing, Monster.Com, and
Others:
Corporate PC Criteria
• Solid Performance at a
Reasonable Price
• Operating System Ready
• Connectivity
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-6
Network Computers
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Used by Workers in Networks
Sealed Low-Cost Systems
Network Microcomputers
No or Minimal Disk Storage
Dependent Upon Internet or
Intranets for Operations
Standardization
Reduced Costs of Maintenance
and Upgrades
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3-7
Information Appliances
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Smart Gadgets
Cellular Phones and
Pagers
Hand-Held PCs
Web-Based Games
Personal Digital
Assistants (PDAs)
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3-8
Computer Terminals
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Dumb Terminals
Intelligent Terminals
Network Terminals
–Windows Terminals
–Internet Terminals
Transaction Terminals
–ATM Machines
–POS Terminals
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-9
Midrange Systems
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
High-End Network Servers
Process Business Applications
Less Costly to Busy and
Maintain that Mainframes
Scientific Research
Engineering Analysis
Process Monitoring and
Control
CAD Systems
Front-End to Mainframes
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3-10
Midrange Systems
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Los Alamos Laboratory and
Blackboard, Inc.:
Moving to Blade Servers
• Rack System Slide-Ins
• 30 – 50% Lower Cost
• Smaller Size, Less Power Use
• Reduced Cabling
• Don’t Need Environmental
Requirements
• No Raised Flooring
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-11
Mainframe Systems
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Large, Fast, and Powerful
Hundreds of Millions of
Instructions per Second
(MIPS)
Large Primary Storage
Superservers for Large
Client/Server Networks
Data Warehousing and Mining
Electronic Commerce
Applications
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3-12
Supercomputer Systems
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Extremely Powerful Systems
Large-Scale Data Mining
Parallel Processing
Floating Point Decimal
Operations –
–Billions - Gigaflops
–Trillions - Teraflops
Symmetric Multiprocessing –
SMP
Minisupercomputers
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3-13
The Computer System
Concept
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
Central Processing Unit
Input
Devices
Control Arithmetic
Unit
Logic Unit
System Bus
Special
Cache
Purpose
Processors Memory
• Keyboard
• Mouse
• Touch Screen
• Optical-Scanner
• Voice Recognition
etc.
Secondary
Storage
Devices
KEY TERMS
BACK NEXT
Primary
Storage
Memory
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
Output
Devices
• Visual Display
Unit
• Printer
• Audio-Response
• Physical Control
Devices, etc.
Magnetic Disk
Tape Units
Optical Disks, etc.
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Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Computer Processing Speeds
Thousandths – Milliseconds
Millionths – Microseconds
Billionths – Nanoseconds
Trillionths – Picoseconds
MIPS
Megahertz (MHz)
Gigahertz (GHz)
Internal Clock
Registers and Caches
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3-15
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Input - Output
and Storage Technologies
Using the Right Peripherals
Value of Consolidating
Operations
Real World Case 2…
Delta and Northwest Airlines:
The Business Value of
Customer Self-Service Click to go to
Case 2
Kiosks
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-16
Peripheral Devices
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Online vs. Offline Devices
Natural User Interface
Pointing Devices
–Graphical User Interface
(GUI)
–Electronic Mouse
–Trackball
–Pointing Stick
–Touchpad
–Touch Screens
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-17
Pen-Based Computing
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Tablet PCs
PDAs
Digitizer Pens
Graphics Tablets
Real World Cases
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-18
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Speech Recognition Systems
Discrete Speech Recognition
Continuous Speech
Recognition (CSR)
Training Time
–Dragon Naturally Speaking
–IBM’s Via Voice
Speaker Independent
Systems
Voice Messaging Computers
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-19
Optical Scanning
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
Document Management
Flatbed Scanners
Optical Character
Recognition (OCR)
Wands and Bar Coding
Uniform Product Code
(UPC)
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-20
Other Input Technologies
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
Magnetic Stripe
Smart Cards
Digital Cameras
Magnetic Ink
Character
Recognition (MICR)
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-21
Output Technologies
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
Voice Response
Video Output
–Video Monitor
–Cathode Ray Tube (CRT)
–Liquid Crystal Display
(LCD)
–Flat-Panel TVs
–Plasma Display Panels
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-22
Printed Output
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Inkjet Printers
Laser Printers
Color Laser Printers
Multifunction Inkjet
Printers
Real World Cases
KEY TERMS
BACK NEXT
END
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3-23
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Semiconductor
Memory
Magnetic
Disks
Optical
Disks
Real World Cases
KEY TERMS
BACK NEXT
Magnetic Tape
Primary Storage Secondary Storage
Storage Trade-offs
END
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3-24
Computer Storage
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Binary Representation
Bit
Byte
Kilobytes (KB) - k
Megabytes (MB)
Gigabytes (GB)
Terabytes (TB)
Petabytes – Over 1
Quadrillion Bytes
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3-25
Computer Storage
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Direct Access
–Random Access (RAM)
–Direct Access Storage
Devices (DASD)
Sequential Access
Semiconductor Memory
–RAM Memory –
Random Access
–ROM Memory – Read
Only
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-26
Computer Storage
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Sequential Access
Storage Device
Direct Access
Storage Device
Read/Write
Head
Read/Write
Head
C
A
A
B
E D C
E
D
Real World Cases
B
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-27
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Magnetic Storage
Floppy Disks
Hard Disk Drives
RAID Storage
Magnetic Tapes
Real World Cases
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-28
Optical Disks
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
CD-ROM
CD-R and CD-RW
CD-RW/DVD
DVD-ROM Drive
DVD-R
DVD-RW
Image Processing
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-29
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Summary
1. Three Major Types of
Computer Systems
– Microcomputer
– Midrange Systems
– Mainframe Systems
Real World Cases
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-30
Summary
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
2. Microcomputers are Used
as Personal Computers,
Network Computers,
Personal Digital
Assistants, Technical
Workstations, and
Information Appliances.
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-31
Summary
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
3. Midrange Systems are used for
Many Multiuser Business Data
Processing and Scientific
Applications.
4. Mainframe Systems are Larger
and More Powerful than
Midrange Systems, Have More
Memory, and Support More
Users and Peripheral Devices,
and High Volumes of Data.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-32
Summary
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
5. Computer Systems Perform
Input, Processing, Output,
Storage, and Control
Functions.
6. Hardware Consists of Input
and Output Devices, a
Central Processing Unit,
Primary and Secondary
Storage Devices.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-33
Summary
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
7. Supercomputers are a Special
Category of Extremely
Powerful Mainframe Systems
Designed for Massive
Computational Assignments.
8. Peripheral Devices are used
for a Wide Array of Input,
Output, and Storage
Applications.
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-34
KEY TERMS
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Binary Representation
Central Processing Unit (CPU)
Computer System
Computer Terminal
Digital Cameras
Direct Access
Generations of Computing
Information Appliance
Laptop Computer
Liquid Crystal Displays (LCD)
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-35
KEY TERMS
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Magnetic Disk Storage
- Floppy Disk - Hard Disk - RAID
Magnetic Ink Character
Recognition (MICR)
Magnetic Stripe
Magnetic Tape
Mainframe Computer
Microcomputer
Microprocessor
Midrange Computer
Minicomputer
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-36
KEY TERMS
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Network Computer
NetPC
Network Server
Network Terminal
Offline / Online
Optical Character Recognition
(OCR)
Optical Disk Storage
- CD-ROM - CD-R - CD-RW
- DVD - WORM Disk
Optical Scanning
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-37
KEY TERMS
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Pen-Based Computing
Peripheral Devices
Personal Digital Assistant
Pointing Devices
Electronic Mouse - Pointing Stick
Touchpad - Trackball
Primary Storage
Printers
Secondary Storage
Semiconductor Memory
- RAM - ROM
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-38
KEY TERMS
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Sequential Access
Smart Cards
Speech Recognition
Storage Capacity Elements
- Bit - Byte
- Kilobyte (K or KB) - Megabyte
(MB)
- Gigabyte (GB) - Terabyte (TB)
Storage Media Trade-offs
Supercomputer
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-39
KEY TERMS
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
Time Elements
- Millisecond - Microsecond
- Nanosecond - Picosecond
Touch-Sensitive Screen
Trends in Computers
Video Output
Volatility
Wand
Workstation
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-40
Optional Case Studies
Real World Case 1
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
Click to go to
Case 1
Real World Case 2
Delta and Northwest Airlines: The
Business Value of Customer SelfService Kiosks
Click to go to
Case 2
Real World Case 3
Nappi Distributors and Old
Dominion Freight Line: The
Business Value of Wireless
Handhelds
Click to go to
Case 3
Real World Case 4
Wisconsin Physicians Service and
Winnebago: Moving to Linux on
the Mainframe
Copyright 2005, McGraw-Hill/Irwin, Inc.
Click to go to
Case 4
3-41
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Computer Software
Real World Cases
Chapter 4
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-42
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
1- What are the business
benefits and limitations
of Progressive’s IRV
system and the
UniFirst PDA
system?
Return to
Chapter 3
Return to
Cases Page
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-43
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
Progressive’s IRV system
Benefits would include:
• A competitive edge in
providing fast claims service.
• Improved customer relations.
• More productive claims reps.
• Claims settled in less time.
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-44
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
Progressive’s IRV system
Limitations would include:
• All necessary information to
settle the claim may not be
available to the claims reps and
settlements may be incorrect.
• Reduced data verification by
company supervisory staff may
lead to a higher error occurrence
of incorrect claims settlements.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-45
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
UniFirst PDA system
Benefits would include:
• Information provided to field
sales professionals to support
their sales and service activities
in real time.
• Information provided to sales
professionals in the field to
assist in follow-ups.
• Lower costs
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-46
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
UniFirst PDA system
Benefits would include:
• Increased revenues.
• Reduction of number of
employees – data entry.
• Reduction in past-due invoices.
• Managers can create calendars,
prioritize accounts and help the
reps sell.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-47
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
UniFirst PDA system
Limitations would include:
• PDA technology must be used by
“people who often shun the stuff.”
• Verification of input data is lost by
the elimination of data input
employees. Sales reps are
responsible for data input accuracy.
• IT improvements limited to the
business processes and have not
been made to differentiate UniFirst
from competition.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-48
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
2- What computer system
technologies could
Progressive add to
improve the business
value of their IRV
program? Why?
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-49
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
Discussion Points Include:
Limitations would include:
• PDA technology must be used by
“people who often shun the stuff.”
• Verification of input data is lost by
the elimination of data input
employees. Sales reps are
responsible for data input accuracy.
• IT improvements limited to the
business processes and have not
been made to differentiate UniFirst
from competition.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-50
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
3- Should UniFirst switch
from PDA’s to laptop PCs
or tablet PCs? Why or
why not? Checkout
websites like
www.cnet.com or
www.pcworld.com for the
latest product reviews to
help you answer.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-51
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
Discussion Points Include:
• Cost savings vs. cost of a
change to a different
technology.
• Anticipated improvement
in revenues.
Real World Cases
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-52
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
Progressive Insurance and
UniFirst Corp: The Case for
Mobile Computing Systems
Discussion Points Include:
• Cost savings vs. cost of a
change to a different
technology.
• Anticipated improvement
in revenues.
• Improved customer
relations.
Return to
Chapter 3
Return to
Cases Page
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-53
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Delta and Northwest
Airlines: The Business Value of
Customer Self-Service Kiosks
1- What computer system
technologies and
functions are included in
self-service kiosks? What
other technologies should
be provided? Why? Visit
the Kinetics USA
website for more
details.
Return to
Chapter 3
Return to
Cases Page
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-54
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Delta and Northwest
Airlines: The Business Value of
Customer Self-Service Kiosks
Items to Discuss Include:
• Special-purpose
microcomputer terminals.
• Video touch screens
• High speed thermal printer
• Magnetic stripe card
reader
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-55
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
Delta and Northwest
Airlines: The Business Value of
Customer Self-Service Kiosks
2- What is the customer value
of self-service kiosks for
airline check-in? What
other services should be
provided? Take the Delta
demo tour of check-in at
www.delta.com/travel/trav_s
erv/kiosk to help you
answer.
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-56
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Delta and Northwest
Airlines: The Business Value of
Customer Self-Service Kiosks
Discussion Points Include:
• Reduced customer waiting
time
• Customer relationship is
improved.
• Costs reduced or minimized
by the reduction of employee
cost of handling routine
procedures for travelers.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-57
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Delta and Northwest
Airlines: The Business Value of
Customer Self-Service Kiosks
3- What is the business
value of self-service
kiosks in the airline
industry? Do selfservice kiosks give
airlines a competitive
advantage? Why or
why not?
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-58
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Delta and Northwest
Airlines: The Business Value of
Customer Self-Service Kiosks
Points About Business Value:
• Reduces costs or at least
reduces the increase in cost.
• Improves customer relations
by making check-in and
subsequent activities are
easy as possible.
• Reduces the waiting time for
customers that increase after
Sept. 11.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-59
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Delta and Northwest
Airlines: The Business Value of
Customer Self-Service Kiosks
Points About Competitive Advantage:
• Self-service kiosks maintain
industry competitiveness.
• Enhancement of the
services available through
self-service kiosks increases
an airlines competitive
advantage by improving
customer relations.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-60
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Delta and Northwest
Airlines: The Business Value of
Customer Self-Service Kiosks
Points About Competitive Advantage:
• The need to continuously
improve and streamline traveler
check-in activities, especially
after Sept. 11, is a factor in a
highly competitive industry.
Real World Cases
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-61
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
Delta and Northwest
Airlines: The Business Value of
Customer Self-Service Kiosks
Points About Competitive Advantage:
• The need to continuously
improve and streamline traveler
check-in activities, especially
after Sept. 11, is a factor in a
highly competitive industry.
• A reduction of costs or a
reduction in the increase in costs
Return to
in a highly competitive
Chapter 3
industry is critical.
Return to
Cases Page
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-62
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
1- What are the business
benefits and limitations of
the use of wireless handheld
computers by Nappi
Distributors? How could
their mobile sales
application be
improved? Defend
your proposals.
Return to
Cases Page
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-63
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
Discussion Points Include:
Benefits –
• Reduced waiting time for sales
reps
• Reduced time to process an
order.
• Reduction in employee costs or
number of employees required
to input sales orders.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-64
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
Discussion Points Include:
Limitations –
• Interference from radar
sites in the area.
• Upgrade of system to
include new features is
more difficult to learn.
• Transmission speed is slow.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-65
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
Improvement in Mobile Sales
Application Includes:
• Speech recognition to
reduce keying in of
orders.
• Table PCs
• Touch screen technology
• PDAs
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-66
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
2- What are the business
benefits and limitations of the
use of wireless handheld
computers by Old Dominion
Freight Lines? How could
their mobile freight
management application be
improved? Defend your
proposals.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-67
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
Discussion Points Include:
Benefits –
• Increased customer
satisfaction.
• Improved driver efficiency.
• Reduction in loading errors.
• More stops per day.
• Improved accountability by
drivers.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-68
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
Discussion Points Include:
Limitations –
• Requires better trained drivers.
• Charges by character requires
communications be brief.
• Dependent upon a network of
wireless service providers.
System failure causes company
delivery service to be delayed.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-69
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
Improvements in the mobile
freight management application
could include:
• Speech recognition to
reduce keying in of
orders.
• Optical scanning
wands.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-70
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
3- Would you recommend
the use of wireless laptop
or tablet PCs to either
Nappi or Old Dominion?
Why or why not? Visit
the Symbol Technologies
website to help you
answer.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-71
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
Discussion should include:
• Duties required to employees
– sales reps and drivers.
• Nature of packaging for
products and the easy with
which certain input devices
could be used to improve
efficiency by the employee.
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-72
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
Discussion should include:
• The benefit to the
company in terms of
customer relations.
Real World Cases
KEY TERMS
BACK NEXT
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-73
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
Nappi Distributors and
Old Dominion Freight Line:
The Business Value of Wireless
Handhelds
Discussion should include:
• The benefit to the
company in terms of
customer relations.
• The cost savings to the
company.
KEY TERMS
BACK NEXT
Return to
Cases Page
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-74
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Wisconsin Physicians
Service and Winnebago: Moving
to Linux on the Mainframe
1- How can a mainframe
use Linux to replace the
equivalent of hundreds
of Unix or Windows
servers?
Real World Cases
KEY TERMS
BACK NEXT
Return to
Cases Page
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-75
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Wisconsin Physicians
Service and Winnebago: Moving
to Linux on the Mainframe
Server consolidation –
replacing dozens or even
hundreds of separate Intelbased Linux or Windows
servers with a partition on
the mainframe that
dedicates a single processor,
memory and other system
sources to running Linux.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-76
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
Wisconsin Physicians
Service and Winnebago: Moving
to Linux on the Mainframe
2- What are the business
benefits and challenges of
using Linux on a
mainframe to replace
Windows or Unix servers?
Use WPS and Winnebago
to illustrate your answer.
END
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-77
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
•
•
•
•
Wisconsin Physicians
Service and Winnebago: Moving
to Linux on the Mainframe
WPS move to Linux on the mainframe
To leverage the mainframe’s reliability
To keep support costs low
WPS created a virtual Linux Server
running on one 250-MIPS processor
available within an IBM mainframe
• Costs were only 40% of that for
ordering, installing and configuring a
new Intel-based server
• Virtual servers can be created within 2
to 3 minutes and deliver as much as 9
times the throughput of a stand-alone
server
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-78
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Wisconsin Physicians
Service and Winnebago: Moving
to Linux on the Mainframe
• Winnebago implemented a
groupware application for Linux on
an IBM mainframe
• Windows NT servers had to be
rebooted weekly in an effort to
improve their stability
• On the mainframe, everything is
geared to run 24/7
• It was more cost-effective to use part
of his existing mainframe capacity
and his staff’s mainframe skills to
run its Linux-based e-mail system
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-79
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Wisconsin Physicians
Service and Winnebago: Moving
to Linux on the Mainframe
3- What business
applications are best
suited to servers?
To mainframes?
Explain your
reasoning.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-80
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Wisconsin Physicians
Service and Winnebago: Moving
to Linux on the Mainframe
Servers – Windows application
since they don’t run on Linux and
applications that have complex
graphical user interfaces or that
perform complicated data analysis can
use so much processing power that it’s
more cost-effective to keep running
them on stand-along servers. Users
have also been reluctant to move
complex applications such as SAP R/3,
which can take years to implement on
distributed servers, onto a new
environment.
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-81
Types of
Computer
Systems
The Computer
System Concept
Section II
Peripherals
Input
Technologies
Output
Technologies
Storage TradeOffs
Semiconductor
Memory
Magnetic Disks
Magnetic Tape
Optical Disks
Real World Cases
KEY TERMS
BACK NEXT
END
Wisconsin Physicians
Service and Winnebago: Moving
to Linux on the Mainframe
Mainframes –
Some of the best
candidates for
consolidation are
infrastructure applications
such as file and print
services, e-mail,
domain name servers
and Web servers.
Return to
Cases Page
Copyright 2005, McGraw-Hill/Irwin, Inc.
3-82