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Fundamentals of Information Systems, Second Edition 1 Hardware and Software Chapter 2
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Fundamentals of Information Systems, Second Edition 2 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.
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Fundamentals of Information Systems, Second Edition 3 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.
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Fundamentals of Information Systems, Second Edition 4 Principles and Learning Objectives End users and IS professionals use a programming language whose functional characteristics are appropriate to the task at hand.
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Fundamentals of Information Systems, Second Edition 5 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.
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Fundamentals of Information Systems, Second Edition 6 Computer System Components
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Fundamentals of Information Systems, Second Edition 7 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
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Fundamentals of Information Systems, Second Edition 8 Execution of an Instruction
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Fundamentals of Information Systems, Second Edition 9 Processing and Memory Devices
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Fundamentals of Information Systems, Second Edition 10 Processing Characteristics and Functions Machine cycle time Clock speed Wordlength Superconductivity
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Fundamentals of Information Systems, Second Edition 11 Moore’s Law
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Fundamentals of Information Systems, Second Edition 12 Number of Bytes
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Fundamentals of Information Systems, Second Edition 13 Types of Memory Random access memory (RAM) –EDO RAM –SDRAM –DRAM Read-only memory (ROM) –PROM –EPROM
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Fundamentals of Information Systems, Second Edition 14 Basic Types of Memory Chips
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Fundamentals of Information Systems, Second Edition 15 Secondary Storage and Output Devices
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Fundamentals of Information Systems, Second Edition 16 Cost Comparisons for Various Forms of Data Storage
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Fundamentals of Information Systems, Second Edition 17 Secondary Storage Access Methods Sequential access Direct access Sequential access storage devices Direct access storage devices
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Fundamentals of Information Systems, Second Edition 18 Secondary Storage Devices Magnetic tapes Magnetic discs RAID SAN Optical discs Magneto-optical discs Digital versatile discs Memory cards Expandable storage
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Fundamentals of Information Systems, Second Edition 19 Types of Secondary Storage
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Fundamentals of Information Systems, Second Edition 20 Hard Disc
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Fundamentals of Information Systems, Second Edition 21 Storage Area Network
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Fundamentals of Information Systems, Second Edition 22 Digital Versatile Disc Player
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Fundamentals of Information Systems, Second Edition 23 Expandable Storage
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Fundamentals of Information Systems, Second Edition 24 Comparison of Secondary Storage Devices
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Fundamentals of Information Systems, Second Edition 25 Input Devices Personal computer input devices Voice-recognition devices Digital computer cameras Terminals Scanning devices
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Fundamentals of Information Systems, Second Edition 26 A PC Equipped with a Computer Camera
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Fundamentals of Information Systems, Second Edition 27 Output Devices Display Monitors Liquid Crystal Displays (LCDs) Printers and Plotters Music Devices
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Fundamentals of Information Systems, Second Edition 28 Laser Printer
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Fundamentals of Information Systems, Second Edition 29 Types of Computer Systems
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Fundamentals of Information Systems, Second Edition 30 Overview of Software
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Fundamentals of Information Systems, Second Edition 31 Overview of Software Computer programs Documentation Systems software Computer system platform Application software
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Fundamentals of Information Systems, Second Edition 32 Classifying Software by Type and Sphere of Influence
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Fundamentals of Information Systems, Second Edition 33 Systems Software
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Fundamentals of Information Systems, Second Edition 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
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Fundamentals of Information Systems, Second Edition 35 Role of the Operating System
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Fundamentals of Information Systems, Second Edition 36 Application Program Interface
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Fundamentals of Information Systems, Second Edition 37 An Example of the Operating System Controlling Physical Access to Data
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Fundamentals of Information Systems, Second Edition 38 Popular Operating Systems
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Fundamentals of Information Systems, Second Edition 39 Application Software
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Fundamentals of Information Systems, Second Edition 40 Sources of Software
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Fundamentals of Information Systems, Second Edition 41 Proprietary and Off-the-Shelf Software
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Fundamentals of Information Systems, Second Edition 42 Examples of Personal Productivity Software
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Fundamentals of Information Systems, Second Edition 43 Software Suites
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Fundamentals of Information Systems, Second Edition 44 Enterprise Application Software
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Fundamentals of Information Systems, Second Edition 45 Summary of Programming Languages
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Fundamentals of Information Systems, Second Edition 46 Summary Hardware devices work together to perform input, processing, data storage, and output. There are two main categories of software: systems software and application software. An operating system (OS) is a set of computer programs that controls the computer hardware to support users’ computing needs. Application software may be proprietary or off-the-shelf. There are five generations of programming languages, plus object- oriented programming languages.
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