Micro Input Output

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Micro Input Output

  1. 1. COMPUTER HARDWARES INPUT DEVICES, OUTPUT DEVICES AND STORAGE MEDIA
  2. 2. Recap previous lesson <ul><li>Parts of computer system </li></ul>3 2 1 Monitor CPU Speakers 3
  3. 3. Objectives <ul><li>be able to identify and state the functions of; </li></ul><ul><ul><li>Input devices </li></ul></ul><ul><ul><li>Output devices </li></ul></ul><ul><ul><li>Storage media </li></ul></ul>
  4. 4. Introduction <ul><li>Input device? </li></ul><ul><ul><li>An input device is a piece of hardware that is used to enter data into a computer. </li></ul></ul>Input : Enter data
  5. 5. Introduction <ul><li>Output device? </li></ul><ul><ul><li>piece of hardware that is use to get information OUT of a computer </li></ul></ul>Output : Produce results / data
  6. 6. Introduction <ul><li>Storage device? </li></ul><ul><ul><li>A device used for storing something (information/data). </li></ul></ul>Storage : keep / save data
  7. 7. Input devices Keyboard Mouse Scanner Joystick Input devices
  8. 8. <ul><li>Keyboard </li></ul><ul><ul><li>a set of alphanumeric and command keys used to input information to a computer </li></ul></ul>
  9. 9. <ul><li>Mouse and Joystick </li></ul><ul><ul><li>act as a pointing device </li></ul></ul><ul><ul><li>controlling device </li></ul></ul><ul><li>Scanner </li></ul><ul><ul><li>a device that scans images, printed text, </li></ul></ul><ul><ul><li>handwriting, </li></ul></ul><ul><ul><li>or an object, and converts it to a </li></ul></ul><ul><ul><li>digital image. </li></ul></ul>
  10. 10. Output devices Output devices Printer Monitor Plotter Projector
  11. 11. Printer <ul><li>a printer is a device that accepts text and graphic output from a computer and transfers the information to paper. </li></ul>
  12. 12. Monitor <ul><li>A display screen used to present information from a computer </li></ul>
  13. 13. Plotter <ul><li>Plotters are a specialist type of printer which is able to draw high quality images on very large pieces of paper, for example 3 foot wide by 10 foot long. </li></ul>
  14. 14. Printer vs Plotter Printers Plotters
  15. 15. Storage devices storage devices Floppy disks Hard disk A zip disk Pen drive
  16. 16. Storage devices – keep data Storage media Capacity Ease of use Floppy disk 1.44mb ★ Hard disk 40gb ★★★★ Pendrive 2gb to 16gb ★★★★ CD or DVD 700mb / 4.7gb ★★★
  17. 17. Exercise <ul><li>Sort these devices into the correct column. </li></ul><ul><li>* scanner * printer *keyboard * mouse * monitor * joystick * speakers </li></ul>Input devices Output devices
  18. 18. Summary <ul><li>Always remember: </li></ul><ul><ul><li>Input device is a device that used to enter data </li></ul></ul><ul><ul><li>Output device is a device which capable of representing information from a computer </li></ul></ul><ul><ul><li>Storage media is a device that stores / keep data </li></ul></ul>
  19. 19. Research – Google , search the following devices: <ul><ul><li>Input devices?Output devices? </li></ul></ul><ul><ul><li>Touchscreen </li></ul></ul><ul><ul><li>Digital camera </li></ul></ul><ul><ul><li>Projector </li></ul></ul>
  20. 20. End lesson <ul><li>Thank you. </li></ul>
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