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Computer system components 6th grade frit 8530
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Computer system components 6th grade frit 8530

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  • 1. Computer System Components Standard: MSBCS – BCS1-1
  • 2. Input Devices
    • Any hardware used to send data to the computer.
  • 3. Examples of Input Devices
    • Keyboard
    • Pointing Device - ex: mouse
    • Joystick – lever that can be moved
    • in all directions to move objects
    • on the screen.
  • 4. Examples of Input Devices (Con’t)
    • Digital Camera – takes and stores photos in a digital form that the computer can work with
    • Scanner – lets you copy printed images into a computer.
  • 5. Examples of Input Devices (Con’t)
    • Microphone – used to input sounds
    • Modem – allows one computer to input data into another computer. Often used to connect a computer to the internet.
  • 6. Keyboard Joystick Mouse
  • 7. Microphone Digital Camera Modem
  • 8. Output Devices
    • Any piece of hardware that displays or plays back the result of computer processing.
  • 9. Output Devices Examples
    • Monitors
    • Printers – makes a hard copy of the display shown on a monitor
  • 10. Monitor Printer
  • 11. Microprocessors
    • Also known as a CPU (Central Processing Unit)
    • CPU – the brain of the computer
  • 12. Operating Systems
    • An operating system is software, consisting of programs and data, that runs on computers and manages computer hardware resources and provides services for execution of various application software.
  • 13. Most Popular Operating Systems
    • Windows 2003
    • Windows 2007
    • Windows XP
    • Windows Vista
    • MacOs X
    • Linux
  • 14. Software Applications
    • Used for a specific purpose such as creating text documents, worksheets or graphics
  • 15. Software Application Examples
    • Microsoft Word – used to create text documents
    • Microsoft PowerPoint – used to create presentations
  • 16. Software Applications Examples (Con’t)
    • Microsoft Excel – used to create spreadsheets
    • Microsoft Access – used to create databases
  • 17. Memory
    • When people talk about computer memory , they usually mean a set of chips that acts as a temporary workspace in the computer.
  • 18. Two Types of Memory
    • RAM – Random Access Memory – stores its contents temporarily; if the computer loses power, RAM’s contents are lost
    • ROM – Read Only Memory – stores its contents permanently, even when the computer is turned off
  • 19. Storage Devices
    • Object that physically holds data or program instructions
  • 20. Examples of Storage Devices
    • Floppy disk drives
    • Hard Drives
    • CD-ROM and DVD-ROM Drives
    • Tape Drives
    • Flash Drives
  • 21. Floppy Disk Hard Drive CD/DVD Flash Drive
  • 22. Unit for Measuring Computer Memory
    • GB – gigobyte (1 GB = 1024 Megabytes)
    • MB – megabyte (1,000,000 bytes)
    • **Gigobyte is larger than a megabyte!
  • 23. Speed of Microprocessors
    • MHz – megahertz (1 million cycles per second)
    • GHz – gigahertz (1 billion cycles per second)
    • **Gigahertz is faster than a Megahertz!!
  • 24. Bibliography
    • The American Heritage® ScienceDictionary . (Retrieved February 23, 2011, from Dictionary.com website: http:// dictionary.reference.com /browse/input devices
    • Input Device, n.d., Retrieved February 18, 2011, http://www.computerhope.com/jargon/i/inputdev.htm
    • Output Device, n.d., Retrieved February 20, 2011, http://www.techterms.com/definition/outputdevice
    • Operating system, n.d., Retrieved February 16, 2011, http://en.wikipedia.org/wiki/Operating_system
    • Computer memory, n.d., Retrieved February 21, 2011, http://en.wikipedia.org/wiki/Computer_memory
    • WordNet 3.0, Farlex clipart collection. (2003-2008). Retrieved February 15, 2011 from http://www.thefreedictionary.com/computer+memory+unit
    • The American Heritage Dictionary of the English Language. Fourth Edition. (2003) Retrieved February 15, 2011 from http://www.thefreedictionary.com/gigahertz
    • The American Heritage Dictionary of the English Language, Fourth Edition. (2003) Retrieved February 15, 2011 from http://www.thefreedictionary.com/megahertz