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D I F

D I F. Lesson 02: Hardware. What Can a Computer Do?. A computer can play music iPod nano 8 GB ($120) A computer can play TV Shows 10-Inch Television ($130) A computer can play movies. DVD Player ($40) A computer can play games. Xbox Arcade ($200). Computer Do Even More.

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D I F

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  1. D I F Lesson 02: Hardware

  2. What Can a Computer Do? • A computer can play music • iPod nano 8 GB ($120) • A computer can play TV Shows • 10-Inch Television ($130) • A computer can play movies. • DVD Player ($40) • A computer can play games. • Xbox Arcade ($200)

  3. Computer Do Even More Size of Wikipedia in English If Printed (1.2 TB) Calculators, Word Processors, Image Editing, Animations, Film Editing, Slide Presentations, Web Design, Web Browsing, Programming, Simulations, Virtual Reality, Research, Streaming Video, Streaming Audio, File Transfers, E-Mail, Photo Albums, DVD Burning,

  4. Memorize p 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989

  5. Speed p http://www.youtube.com/watch?v=HiliHq8phgE

  6. pis an Important Number The ratio of a circle’s circumference to its diameter. A circle with a diameter of 1 has a circumference of p But We Don’t Want to Have to Memorize It

  7. A Computer is a Cognitive Prosthesis Air Traffic Control Long Distance Phone Calls Computer-Generated Imagery (CGI) Human Genome Project Large Hadron Collider (LHC) Computer Simulations

  8. Human Computers

  9. Other Kinds of Computers Abacus • Virtual Abacus can be found at: • http://www.tux.org/~bagleyd/java/AbacusApp.html

  10. Other Kinds of Computers Astrolab

  11. The Difference Engine http://www.youtube.com/watch?v=dnxylAJ0M9Q Babbage Difference Engine

  12. ENIAC The First General-Purpose Electric Computer (200kHz) Modern Desktops have 1,000 Times the Computing Power And Millions of Times the Storage Capacity

  13. UNIVAC 2.28 MegaHertz (MHz) Processor http://www.youtube.com/watch?v=FMXT4f8C63A Remington Rand UNIVAC Commercial

  14. Other Kinds of Computers Slide Rule • Virtual Slide Rule • http://sliderulemuseum.com/SR_Course.htm

  15. Cray Computer 80-105 MHz Made Animations for Tron (1982)

  16. Scientific Calculator 6 MegaHertz (MHz) Processor There’s a Scientific Calculator on your computer.

  17. Cell Phone 600 MegaHertz (MHz) Processor, 256MB Ram

  18. Modern Desktop 2.5 GigaHertz (GHz) Processor, 1-2 GigaBytes of RAM

  19. The Kraken 1 Petaflop (1,000,000,000,000,000 Calculations Per Second)

  20. Lab: Dissecting a Computer

  21. Motherboard

  22. Central Processing Unit (CPU)

  23. Random-Access Memory (RAM)

  24. Read-Only Memory (ROM)

  25. Tape Drive

  26. Hard Drive

  27. 1GB Then and Now

  28. Other Persistent Storage Devices • Compact Discs (CDs): 700MB • Digital Versatile/Video Disc (DVD): 5 – 9.4 GB • Solid-State Drive / Flash Drive (Thumb Drive): 1 – 16 GB

  29. Networking Wireless Router

  30. Peripherals • Keyboard • Mouse • Monitor • Scanner • Webcam • Camera • Printer • Speaker

  31. Keyboard Karate Tab is Especially Important for Users with disabilities.

  32. Typing Bookmarks • Table of Keyboard Shortcuts http://en.wikipedia.org/wiki/Table_of_keyboard_shortcuts • Learn Touch Typing http://www.sense-lang.org/typing/ • Typing Games http://www.onlytypinggames.com/ • Speed Typing Test http://10-fast-fingers.com/

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