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Today’s Topics. Chapter 1: Computers & You Spotlight 1: Ethics Spotlight 4: File Management. Chapter 1: Computers & You. Computer Fundamentals. Computer: a machine that performs the information-processing cycle Input: getting data into the computer

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Today’s Topics

  • Chapter 1: Computers & You

  • Spotlight 1: Ethics

  • Spotlight 4: File Management



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Computer Fundamentals

  • Computer: a machine that performs the information-processing cycle

    • Input: getting data into the computer

      • Keyboard, Mouse, Microphone, Disk Drive, Scanner, Digital Camera

    • Processing: transforming data into information

      • Central Processing Unit (CPU) or Processor, Random Access Memory (RAM)

    • Output: displaying information

      • Monitor, Printer, Speaker

    • Storage: holding programs and data for future use

      • Hard Disk Drive, Floppy Disk, CD-ROM, DVD-ROM

    • (Communications: moving data between computers

      • Modem)



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Computer Fundamentals

  • Computer System: a collection of related components designed to work together

    • Hardware: physical component

    • Software: program

      • System Software: program that helps the computer function properly

        • Operating System (OS): MS, Mc, Unix, Linux

      • Application Software: program that performs a task

        • Word Processing, Spreadsheet, Database, Presentation, E-Mail, Web Browser


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Types of Computers

  • For Individuals: PC, Desktop Computer, Notebook Computer, Laptop Computer, Subnotebook Computer, Tablet PC, PDA, All-In-One Computer

  • For Organizations

    • Server: computers that make programs and data available to people who are connected to a network

    • Mainframe: designed to handle huge data in large organizations






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Spotlight 1: Ethics

  • Ethical Principle: the justification for considering an act or a rule to be morally right or wrong

  • Netiquette: specific behavior guidelines for computer and Internet users

  • Plagiarism: the use of someone else’s intellectual property


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Spotlight 4: File Management

  • File-Naming Conventions

    • .exe: program or application

    • .doc: MS Word

    • .xls: MS Excel

    • .ppt: MS PowerPoint

    • .mdb: MS Access

    • .pdf: Adobe Acrobat

    • .txt: ASCII text

    • .htm or .html: Web pages

    • .rtf: Rich Text Format

    • .jpeg or jpg: picture or image


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