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CS-128, Module 1: COURSE OVERVIEW, and Critical Terms & Concepts Charles Abzug, Ph.D. Department of Computer Science James Madison University Harrisonburg, VA Voice Phone : , Home Page: © 1999 Charles Abzug
2 Agenda Personal Introductions Introduction to Computers and Computing Course Overview and Content Rules and Expectations Grading Substance
© 1999 Charles Abzug3 Personal Introductions
© 1999 Charles Abzug4 Agenda Personal Introductions Introduction to Computers and Computing
© 1999 Charles Abzug6 The Three Revolutions
© 1999 Charles Abzug7 The Three Revolutions Agricultural Industrial Information
© 1999 Charles Abzug8 What is a Computer? Data Processing Programs Data vs. Information Quantities of Data: –Byte –kByte (kB: kiloByte) –MByte (MB: MegaByte) –GByte (GB: GigaByte) –TByte (TB TeraByte) Communications
© 1999 Charles Abzug9 Practical Use of Computers (1): Here and Now Communication – Messages Mailing Lists –Newsgroups Data Input and Formatting, and Data Processing –Word Processing –Presentation –Calculation, Organization of Data (Spreadsheet) Information Gathering and Updating –Browsers –Search Engines –Library Access Games Shopping Banking
© 1999 Charles Abzug10 Practical Use of Computers (2): A Somewhat Futuristic View Telecommuting Distance Education, including secure distance examinations E-Commerce: –24-hr-per-day Banking –24-hr-per-day Investments –24-hr-per-day General Commerce (browsing catalogs, ordering, paying) –24-hr-per-day live consultation via world-wide hookup Voting Inexpensive Telephony Inexpensive Tele-Conferencing 24-hr-per-day Total Access to Up-to-Date Information
© 1999 Charles Abzug11 Agenda Personal Introductions Introduction to Computers and Computing Course Overview and Content
© 1999 Charles Abzug12 Focus of this Course (1) General Computer Skills –Overcoming computer fear –Demystification –Familiarization –Computer Terminology and Jargon –General Concepts, Principles, and Uses applicable to all application software –Navigation through the facilities of the machine and of the network –Look-and-Feel –Bootstrapping Information
© 1999 Charles Abzug13 Focus of this Course (2) Broadening of horizons: the computer as an extension of the self Appreciation for what the computer can accomplish: –communicate –organize –calculate –simulate –analyze –model –draw –organize information –display information
© 1999 Charles Abzug14 Focus of this Course (3) Appreciation for the unique benefits of the use of computers –accuracy –speed –neatness and legibility –offloading of drudgery –consistency and logic
© 1999 Charles Abzug15 Focus of this Course (4) Specific Skills –Computer Control and Navigation: "Windows-95/Windows-NT" – Simeon –Terminal Emulator: QVTnet –News Reader: WinVN –Management of Data/Information –Internet Browsers: Netscape Navigator Internet Explorer –"Office 97" Applications (Application Programs): MS Word (a word processor) MS PowerPoint (presentation package) MS Excel (spreadsheet) –Safety in Computing: Sound Practices for an imperfect world
© 1999 Charles Abzug16 Agenda Personal Introductions Introduction to Computers and Computing Course Overview and Content Rules and Expectations
© 1999 Charles Abzug17 Agenda Personal Introductions Introduction to Computers and Computing Course Overview and Content Rules and Expectations Grading
© 1999 Charles Abzug18 Agenda Personal Introductions Introduction to Computers and Computing Course Overview and Content Rules and Expectations Grading Substance
© 1999 Charles Abzug19 Principal Elements of the Computer Hardware Software
© 1999 Charles Abzug20 Structural Elements of the Computer (1) System Unit Microprocessor: 80486, Pentium, Pentium Pro, Pentium II Input Devices –Keyboard –Pointing Devices: Mouse/Trackball/Touchpad/Touch Screen –Touch Panel Output Devices –Video Display Unit (VDU): CRT (Cathode Ray Tube) LCD (Liquid Crystal Display) –Active Matrix –Thin Film Transistor (TFT) –Loudspeakers –Printer Input AND Output Devices –MODEM (Modulator/Demodulator) –Network Card Ethernet, Fast Ethernet, Switched Ethernet Token Ring
© 1999 Charles Abzug21 Structural Elements of the Computer (2) Storage Devices –Disk Drive (magnetic technology) Hard Disk Floppy Disk IOMEGA " ZIP" Drive IOMEGA " JAZ" Drive –Cartridge Tape Drives (magnetic technology) –CD-ROM (Compact Disk-Read-Only Memory): optical technology –DVD (Digital Video Disk): optical technology Memory: –RAM: (Random Access Memory) Fast Page Output (FPO) Extended Data Out (EDO) Synchronous Dynamic RAM (SDRAM) –Cache Memory –ROM (Read-Only Memory)
© 1999 Charles Abzug22 Structural Elements of the Computer (3) Communications Facilities –MODEM and Analog Telephone Line Internet Service Provider (ISP) –ISDN Modem –Cable MODEM (for Cable-TV) –Local Area Network (LAN): the Network Interface Card Ethernet and its variants Token Ring Fiber-Optic Intranets/Extranets/Internet Virtual Devices (e.g., a virtual disk drive)
© 1999 Charles Abzug23 Communicating with Your Computer Mouse/Trackball/Touchpad/Touch Screen –Left Button –Right Button –Scroll Wheel Keyboard –Typing Characters Alpha Numeric "Special" Characters
© 1999 Charles Abzug24 Communicating with Your Computer (2) Keyboard (continued) –Special-Purpose Keys Four "Arrow" Keys –Function Keys
© 1999 Charles Abzug25 Communicating with Your Computer (3) Keyboard (continued) –Keys that modify the effects of other keys: Talking to Your Computer
END of MODULE 1: COURSE OVERVIEW, and Critical Terms & Concepts
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