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Computers

They're Not Magic! (for the most part)‏. Computers. Adapted from Ryan Moore. Acronyms. PC “Personal Computer” (very vague)‏ Most often means tower+monitor+etc running Microsoft Windows Laptop small & portable PC Netbook very small & portable PC. 2 Basic Categories. Hardware

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Computers

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  1. They're Not Magic!(for the most part)‏ Computers Adapted from Ryan Moore

  2. Acronyms • PC • “Personal Computer” (very vague)‏ • Most often means tower+monitor+etc running Microsoft Windows • Laptop • small & portable PC • Netbook • very small & portable PC

  3. 2 Basic Categories • Hardware • Physical components of the computer • Software • Not physical (stored digitally on a disk, for example)‏ • Computer programs that let the user interact with the hardware

  4. Hardware (rarely changes)‏ • User Interface Devices • mouse, keyboard, microphone, speaker, monitor • The Parts Inside the Computer • CPU • Hard disk • RAM • Power supply • Graphics card • Sound card

  5. Software • Operating System (OS)‏ • Overall set of software that let user interact with mouse, keyboard, network, other programs, everything • Application Software • What most people mean when they say “software” • Let the user do a specific task • browse the Internet • email someone or type up a document

  6. PC High Level View • Monitor • shows the picture • Tower • generates the picture • Keyboard & Mouse • user controls • Speakers (not shown)‏

  7. A See-Through View

  8. CPU – Central Processing Unit • Does most of the “work” (add, move memory around, etc)‏ • The heart & brain of the computer • Interpret & perform instructions

  9. RAM • Temporary (but fast, somewhat small) storage • Loses contents when power turned off

  10. Storage • “Permanently” store programs & data • Lots of space • Doesn't lose data when no power • Slow (relatively)! • Examples: • USB Flash Drive • Hard disk • CDs, DVDs

  11. Storage Pictures

  12. Other Devices • USB ports • Universal Serial Bus – generic connector for tons of “stuff” • cameras, keyboards, mice, printers, flash drives • Firewire is a similar idea • Ethernet port • typical high speed wired network connection • VGA or DVI – video port (connect to monitor)‏ • etc.

  13. Software, in more detail • Operating System (OS) Software • takes care of low level things that all programs might rely upon • Application Software • Using OS, allows users do their work • Might use OS to find mouse position & clicks • Might decide to save the user's file (tell OS what data to write and where to write it [filename], OS controls the hard disk)‏

  14. Interaction Application Software Operating System User InterfaceHardware Hardware User

  15. Microsoft Windows XP

  16. Microsoft Windows 7

  17. Mac OS X

  18. Linux (Ubuntu)‏

  19. Microsoft Office 2007 • Word • Excel • Outlook • PowerPoint • Access • Publisher

  20. Microsoft Word • Word processor • type and print reports, letters, papers, etc. • spell check, thesaurus, built in • automate common tasks • create tables • bulleted lists & numbered lists • Saves in .docx format

  21. Microsoft Excel • Spreadsheet application • Perform arithmetic and statistics across one or more cells (pieces) of data • Using formulas and functions • Generate graphs • A change in one cell will automatically update any cells that depend on the changed cell • Saves in .xlsx format

  22. Microsoft PowerPoint • Presentation program • Slides of information for presentation • Each slide can have: • graphics • text • lists, paragraphs, etc. • animation • Transition between slides • Saves in .pptx format

  23. Microsoft Access • Database program • Store data records in tables • Like Excel rows of data, but specialized to the task at hand • E.g., column 1 is always a date, column 2 is a number • Perform queries across the records • E.g., find all customers who live in zip code 15216. • Automatically hide all the information you don't want to see. • Good for businesses • Saves in .accdb format

  24. Already Familiar With Office? • Office 2007 Changed / Added: • Ribbon Interface • New document format • Old versions of Office cannot by default read these • Solution: save in old format when giving file to someone with an old version Ribbon Interface in Microsoft PowerPoint

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