Computers

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Computers

  1. 1. Introduction to Computers
  2. 2. What is a computer <ul><li>A computer is a machine which processes data, which is input, and produces a result (called output) </li></ul><ul><li>The computer processes input based on a set of instructions which usually are provided by “software” </li></ul>
  3. 3. Types of computers <ul><li>Desktop </li></ul><ul><li>Laptop </li></ul><ul><li>Notebook (laptop but smaller </li></ul><ul><li>PDA </li></ul><ul><li>Tablet </li></ul>
  4. 4. Components of a Computer <ul><li>CPU </li></ul><ul><li>CD/DVD drive </li></ul><ul><li>Floppy drive </li></ul><ul><li>Hard drive </li></ul><ul><li>Keyboard/Mouse </li></ul><ul><li>RAM </li></ul><ul><li>Modem/Wireless </li></ul><ul><li>Ports </li></ul><ul><li>Printer </li></ul><ul><li>Monitor </li></ul><ul><li>Scanners </li></ul>
  5. 5. Software – The Instructions <ul><li>Software instructs the computer what to do, or how to process inputted information </li></ul><ul><li>Examples of Software include: </li></ul><ul><li>-Games </li></ul><ul><li>-Document creation and editing </li></ul><ul><li>-Multimedia </li></ul>
  6. 6. Operating Systems <ul><li>Operating systems are the computers primary software which runs the basic operations of the computer </li></ul><ul><li>All computers require an operating system in order to be used, and all computers purchased come with some form of operating system </li></ul><ul><li>Examples:MS Windows, Apple OS, Linux </li></ul>
  7. 7. Turning the Computer On and Off <ul><li>Turning a computer ON </li></ul><ul><li>-press the circular button with the icon of a circle with a line through it </li></ul><ul><li>Turning the computer OFF </li></ul><ul><li>-With mouse, place pointer over the start icon on the bottom left of the screen, click the left button. Move pointer to button or command ‘Turn off computer’ or ‘Shut Down’. Choose option to shut down, stand by, or logoff. </li></ul><ul><li>CTRL-ALT-DELETE </li></ul>
  8. 8. Using the mouse <ul><li>Practice, Practice, Practice </li></ul><ul><li>Left click = selection or make choice </li></ul><ul><li>Right click = shortcut menu </li></ul>

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