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Managment Information
System
Chapter #4:
Hardware & Software
Principles and Learning Objectives
• Information system users must work closely with information
system professionals to define business needs, evaluate
options, and select the hardware and software that provide a
cost-effective solution to those needs.
• Identify and discuss the role of the essential hardware components of a
computer system.
• List and describe popular classes of computer systems and discuss the
role of each.
• Outline the role of the operating system and discuss how operating
systems have evolved over time.
2
Principles and Learning Objectives
• Organizations do not develop proprietary
application software unless doing so will meet a
compelling business need that can provide a
competitive advantage.
3
Principles and Learning Objectives
• End users and IS professionals use a
programming language whose functional
characteristics are appropriate to the task at
hand.
4
Principles and Learning Objectives
• The information system industry continues to
undergo constant change; users need to be
aware of recent trends and issues in software
licensing to be effective in their business and
personal life.
• Identify several key issues and trends in licensing that
have an impact on organizations and individuals.
5
Computer System Components
6
Hardware Components in Action
• Instruction phase
• Step 1: Fetch instruction
• Step 2: Decode instruction
• Execution phase
• Step 3: Execute the instruction
• Step 4: Store the results
7
Execution of an Instruction
8
Processing and Memory
Devices
9
Processing Characteristics and
Functions
• Machine cycle time
• Clock speed
• Wordlength
• Superconductivity
10
Moore’s Law
11
Number of Bytes
12
Types of Memory
• Random access memory (RAM)
• SDRAM
• DRAM
• Read-only memory (ROM)
• PROM
• EPROM
13
DRAM:
• Pronounced dee-ram, DRAM stands 
for dynamic random access memory, a type of 
memory used in most personal computers.
14
SRAM:
• Short for static random access memory, and 
pronounced ess-ram. SRAM is a type of memory
 that is faster and more reliable than the more 
common DRAM(dynamic RAM). The 
term static is derived from the fact that it 
doesn't need to be refreshed like dynamic RAM
15
Basic Types of Memory Chips
16
Secondary Storage and Output
Devices
17
Cost Comparisons for Various Forms of
Data Storage
18
Secondary Storage Access Methods
• Sequential access
• Direct access
• Sequential access storage devices
• Direct access storage devices
19
Secondary Storage Devices
• Magnetic tapes
• Magnetic discs
• RAID
• SAN
• Optical discs
• Magneto-optical discs
• Digital versatile discs
• Memory cards
• Expandable storage
20
Types of Secondary Storage
21
Hard Disc
22
Storage Area Network
23
Digital Versatile Disc Player
24
Expandable Storage
25
Comparison of Secondary Storage
Devices
26
Input Devices
• Personal computer input devices
• Voice-recognition devices
• Digital computer cameras
• Terminals
• Scanning devices
27
Output Devices
• Display Monitors
• Liquid Crystal Displays (LCDs)
• Printers and Plotters
• Music Devices
28
Laser Printer
29
Types of Computer Systems
30
Overview of Software
31
Overview of Software
• Computer programs
• Documentation
• Systems software
• Computer system platform
• Application software
32
Classifying Software by Type and Sphere of
Influence
33
Systems Software
34
Operating Systems
• Perform common computer hardware functions
• Provide a user interface
• Provide a degree of hardware independence
• Manage system memory
• Manage processing tasks
• Provide networking capability
• Control access to system resources
• Manage files
35
Role of the Operating System
36
Application Program Interface
37
An Example of the Operating System
Controlling Physical Access to Data
38
Popular Operating Systems
39
Workgroup Operating Systems
• Windows 2000 Server
• Unix
• Netware
• Red Hat Linux
• Mac OS X Server
40
Consumer Appliance Operating
Systems
• Windows CE .NET
• Windows XP Embedded
• Handheld PC
• Pocket PC
• Palm OS
41
Nokia 7650
42
Application Software
43
Sources of Software
44
Proprietary and Off-the-Shelf Software
45
Examples of Personal Productivity Software
46
Word Processing Program
47
Database Program
48
Software Suites
49
Enterprise Application Software
50
Use of Integrated Supply Chain
Management Software
51
Selected Enterprise Resource Planning
Vendors
52

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