 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.

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Presentation transcript:

 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, , Photo Albums, DVD Burning,

Memorize 

Speed 

 is an Important Number The ratio of a circle’s circumference to its diameter. A circle with a diameter of 1 has a circumference of  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

Human Computers

Other Kinds of Computers Abacus Virtual Abacus can be found at:

Other Kinds of Computers Astrolab

The Difference Engine 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 Remington Rand UNIVAC Commercial

Other Kinds of Computers Slide Rule Virtual Slide Rule

Cray Computer 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

Motherboard

Central Processing Unit (CPU)

Random-Access Memory (RAM)

Read-Only Memory (ROM)

Tape Drive

Hard Drive

1GB Then and Now

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 GeneralWindowsText EditingWeb BrowserAdvanced HOMEWindow KeyCTRL-C, CTRL-VALT-HOMEALT-PrtScn INSERTALT-TABCTRL-X, CTRL-VALT-LEFT ARROWCTRL-ALT-DEL DELETEALT-SHIFT-TABCTRL-ZALT-RIGHT ARROW PAGE UPCTRL-ACTRL-F5 PAGE DOWNCTRL-F CTRL-N CTRL-T CTRL-TAB TAB Tab is Especially Important for Users with disabilities.

Typing Bookmarks Table of Keyboard Shortcuts Learn Touch Typing Typing Games Speed Typing Test