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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 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 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,
Memorize p 3.1415926535897932384626433832795028841971693993751058209749445923078164062862089986280348253421170679821480865132823066470938446095505822317253594081284811174502841027019385211055596446229489549303819644288109756659334461284756482337867831652712019091456485669234603486104543266482133936072602491412737245870066063155881748815209209628292540917153643678925903600113305305488204665213841469519415116094330572703657595919530921861173819326117931051185480744623799627495673518857527248912279381830119491298336733624406566430860213949463952247371907021798609437027705392171762931767523846748184676694051320005681271452635608277857713427577896091736371787214684409012249534301465495853710507922796892589235420199561121290219608640344181598136297747713099605187072113499999983729780499510597317328160963185950244594553469083026425223082533446850352619311881710100031378387528865875332083814206171776691473035982534904287554687311595628638823537875937519577818577805321712268066130019278766111959092164201989
Speed p http://www.youtube.com/watch?v=HiliHq8phgE
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
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
Other Kinds of Computers Abacus • Virtual Abacus can be found at: • http://www.tux.org/~bagleyd/java/AbacusApp.html
Other Kinds of Computers Astrolab
The Difference Engine http://www.youtube.com/watch?v=dnxylAJ0M9Q Babbage Difference Engine
ENIAC The First General-Purpose Electric Computer (200kHz) Modern Desktops have 1,000 Times the Computing Power And Millions of Times the Storage Capacity
UNIVAC 2.28 MegaHertz (MHz) Processor http://www.youtube.com/watch?v=FMXT4f8C63A Remington Rand UNIVAC Commercial
Other Kinds of Computers Slide Rule • Virtual Slide Rule • http://sliderulemuseum.com/SR_Course.htm
Cray Computer 80-105 MHz Made Animations for Tron (1982)
Scientific Calculator 6 MegaHertz (MHz) Processor There’s a Scientific Calculator on your computer.
Cell Phone 600 MegaHertz (MHz) Processor, 256MB Ram
Modern Desktop 2.5 GigaHertz (GHz) Processor, 1-2 GigaBytes of RAM
The Kraken 1 Petaflop (1,000,000,000,000,000 Calculations Per Second)
Lab: Dissecting a Computer
Read-Only Memory (ROM)
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
Networking Wireless Router
Peripherals • Keyboard • Mouse • Monitor • Scanner • Webcam • Camera • Printer • Speaker
Keyboard Karate Tab is Especially Important for Users with disabilities.
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/