SSA MINI CONFERENCE JUNE 5, 2013Getting Started with Computersand the InternetMartha Bogartmbogart@csd.org
COMPUTER BASICSWhat is a computer?• An electronic device that receives data,processes data, stores data, andproduces a result (output)• A collection of electronic circuits, whichcan be on or off (open or closed)
Components of Computer Systems• Hardware– Tangible, physical equipment like the case, themonitor, the keyboard, mouse, speakers, etc.• Software– Intangible set of instructions that tell thecomputer what to do– Called applications, like PowerPoint, Word, etc.
Types of Computers• Supercomputers– Used to do things like predict hurricanes andnavigate satellites• Mainframe computers– Used by business and government to processlarge amounts of information• Personal computers– smaller and less powerful than the other typesof computers– Desktops– Laptop– Notebook or tablet
Input, Output & Storage Devices• Input devices allow you to communicatewith your computer• Output devices allow your computer tocommunicate with you• Storage devices allow you to store orretrieve information on your computer
Input Devices• Keyboard• Mouse• Touchpad• Touch screen• Bar code reader• Scanner• Microphone• Digital camera
Output Devices• Monitor• Printer• Speakers• Modem– Allows your computer tocommunicate with othercomputers
Storage Devices• Hard Drive– Inside the CPU– Can be external• CD (Compact Disk)• DVD (Digital Versatile Disk)• Flash drive (USB drive)
• Main Home Screen on a Computer Calledthe Desktop
Networks• When computers are connected to othercomputers• They can share information andsometimes hardware (printers)• Two Types: Local-Area and Wide-Area
Local Area Networks (LAN)• Computers are connected together in arelatively close location such as in thesame building or department.• The data and software for thesecomputers are stored on a centralcomputer called the file server.• Most schools use these so thatemployees can have access tofrequently used files.
Wide Area Networks (WAN)• When local area networks are expandedto include several local area networkswithin a city, state, region, territory,country, continent, or the world.• This is what the Internet is—a worldwidenetwork of computer networks.
What Can You Do on the Internet?• Search for and view information• Download information from remotecomputers to your computer• Send e-mail• Join social networks, electronic discussiongroups, blogs, or newsgroups• Use social networks to interact with people• Interact with blogs, news sources, etc.• Make Web pages• Make content: videos, songs, images,multimedia—and share the content withothers
Facts About the Internet• No one owns or manages it• Anyone can publish a page• It can be used to communicate with peoplein the world and find information• Information can be inaccurate or out ofdate• Not everything can be found on theInternet
What Is the World Wide Web?• A global hypertext information system thatuses the Internet– Like a big book of pages, but the pages are ondifferent computers all over the world– Hypertext links on each page connect to otherpages
How Does the WWW Work?• All web pages are written inthe same language: HTML(Hypertext MarkupLanguage)• Every page has its ownWeb address (URL—Uniform Resource Locator)• Hypertext links one webpage to another• A browser (InternetExplorer, Firefox, orChrome) gives users pointand click access
Web Browsers• Internet Explorer– Microsoft product• Mozilla Firefox– Open Source• Google Chrome– Google product
Navigating the Browser• Use the back button to navigate to pagesyou have come from• Enter Internet addresses (URLs)accurately to take you to the website youwant
Internet Searching• Search Engines– Spiders or robots continually search the Webfor new pages, indexing words on each pageand noting changes– No search tool searches everything on the web,so to really find it all, you should use multipleengines– Sites are chosen by keywords that can appearanywhere on the page– Search using only the most important words
Different Search Engines• Google• Bing• Ask• Yahoo!• Dogpile
Getting the Most Out of Search Tools• Use advanced search to narrow yourresults
Files & Folders—Organizing on theComputer• A file is like a document that you might findon someones desk or in a filing cabinet– an item that contains a collection of relatedinformation– examples of files include text documents,spreadsheets, digital pictures, and songs• A folder is a container of files– You can store lots of files inside folders– You can even store folders inside of otherfolders
My Documents• A default location on your computer whereit stores files is called My Documents• This is a folder that has already beencreated for you• If you don’t ―tell‖ the computer to dootherwise, it will save your:– Music files to the My Music folder– Picture files to the My Pictures folder– Videos to the My Videos folder
PRACTICE: Creating a New Folder• Right mouse click on any empty space onyour desktop to get this pop up menu:
• Click the New option to get the side barmenu pictured:
• A new yellow folder will appear on yourdesktop. Type your name in place of thewords, ―New folder.‖
• Double click the folder with your name onit to open it.
PRACTICE: Creating & Saving a File• Open Microsoft Word on your computer• Type a sentence• Go up to the menu bar and click onrainbow ball• Move down the list and click on ―Save as‖• Navigate to the folder you created withyour name on it by clicking the Desktopicon, then click on your folder• Give your file a name and click Save
• Open Word by Clicking on the IconType a sentence here.