Chapter 3 - Principles of Information Systems, Ninth...

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1 Principles of Information Systems, Ninth Edition Chapter 3 Hardware: Input, Processing, and Output Devices
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Principles and Learning Objectives Computer hardware must be carefully selected to meet the evolving needs of the organization and its supporting information systems Describe the role of the central processing unit and main memory State the advantages of multiprocessing and parallel computing systems, and provide examples of the types of problems they address Principles of Information Systems, Ninth Edition 2
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Principles and Learning Objectives (continued) Describe the access methods, capacity, and portability of various secondary storage devices Identify and discuss the speed, functionality, and importance of various input and output devices Identify the characteristics of and discuss the usage of various classes of single-user and multiuser computer systems Principles of Information Systems, Ninth Edition 3
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Principles and Learning Objectives (continued) The computer hardware industry is rapidly changing and highly competitive, creating an environment ripe for technological breakthroughs Describe Moore’s Law and discuss its implications for future computer hardware developments Give an example of recent innovations in computer CPU chips, memory devices, and input/output devices Principles of Information Systems, Ninth Edition 4
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Why Learn About Hardware? Hardware Any machinery that assists in the input, processing, storage, and output activities of an information system When making hardware decisions, businesses must consider how the hardware can support Objectives of the information system Goals of the organization Principles of Information Systems, Ninth Edition 5
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Computer Systems: Integrating The Power of Technology Hardware Components Central processing unit (CPU) Arithmetic/logic unit, the control unit, and the register areas Arithmetic/logic unit (ALU) Performs mathematical calculations and makes logical comparisons Control unit Sequentially accesses program instructions, decodes them, and coordinates the flow of data in and out of the ALU, registers, primary storage, and even secondary storage and various output devices Principles of Information Systems, Ninth Edition 6
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Computer Systems: Integrating The Power of Technology (continued) Registers High-speed storage areas Primary storage Closely associated with the CPU Principles of Information Systems, Ninth Edition 7
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Hardware Components in Action Step 1: Fetch instruction Step 2: Decode instruction Step 3: Execute instruction Step 4: Store results Principles of Information Systems, Ninth Edition 8
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Principles of Information Systems, Ninth Edition 9 Hardware Components in Action (continued)
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Chapter 3 - Principles of Information Systems, Ninth...

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