9781423901785_PPT_ch04

9781423901785_PPT_ch04 - Management Information Systems,...

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Management Information Systems, Sixth Edition Chapter 4: Business Hardware
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Management Information Systems, Sixth Edition 2 Objectives List major hardware components of computers and explain their functions Classify computers into major categories, and identify their strengths and weaknesses Identify and evaluate key criteria for deciding what computers or related devices to purchase Discuss the possible health hazards of computer use
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Management Information Systems, Sixth Edition 3 Computer Hardware Components Hardware : physical components of computers and related electronic devices Consider software before hardware Computer must handle four operations: Accept data Store data and instructions Process data Output data and/or information
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Computer Hardware Components (continued) In general, every computer has the following components: Input devices Central processing unit (CPU) Internal memory Storage Output devices Input devices : receive signals from outside of computer and transfer them into the computer Management Information Systems, Sixth Edition 4
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Management Information Systems, Sixth Edition 5 Computer Hardware Components (continued)
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Management Information Systems, Sixth Edition 6 Computer Hardware Components (continued) Central processing unit (CPU) Accepts instructions and data Decodes and executes instructions Stores results (output) in memory Internal (or primary ) memory : stores data and instructions before and after CPU processes them RAM : random access memory ROM : read-only memory
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Management Information Systems, Sixth Edition 7 Computer Hardware Components (continued) Motherboard : circuit board containing the CPU and primary memory Storage : magnetic disks, magnetic tapes, optical discs, DVDs, and flash memory Allows permanent storage Output devices : deliver information from the computer to the user Monitors and printers are the most common output devices Audio devices also deliver output
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Management Information Systems, Sixth Edition 8 Computer Hardware Components (continued) Bit : Binary digit 0 or 1 Byte : a standard group of eight bits Most characters can be represented by a single byte Computer memory and storage capacity are measured in megabytes (MB), gigabytes (GB), and terabytes (TB)
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Management Information Systems, Sixth Edition 9 Computer Hardware Components (continued)
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Management Information Systems, Sixth Edition 10 Classification of Computers Computers vary in size and power Classified by power Power is determined mainly by processing speed and memory size More powerful computers are more expensive
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11 Supercomputers Supercomputers : most powerful computers at any given time Largest in physical size and most expensive Designed for complex arithmetic calculations Generally impractical for business purposes
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This note was uploaded on 06/14/2011 for the course MGSC 290 taught by Professor Johnston during the Fall '09 term at South Carolina.

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9781423901785_PPT_ch04 - Management Information Systems,...

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