3 input, output and storage technologies
Download as PPT, PDF1 like3,231 views
This document discusses computer hardware input devices, output devices, and storage media. It defines input devices as hardware used to enter data into a computer, such as keyboards, mice, and scanners. Output devices are defined as hardware that presents information from a computer to users, like monitors, printers, and speakers. Storage media are devices that store data, including floppy disks, hard disks, USB drives, and CDs/DVDs. Common input, output, and storage devices are identified and briefly described.
3 input, output and storage technologies
- 1. COMPUTER HARDWARES INPUT DEVICES, OUTPUT DEVICES AND STORAGE MEDIA
- 2. PARTS OF A COMPUTER SYSTEM 11 Monitor CPU 33 22 Speakers 33
- 3. OBJECTIVES To be able to identify and state the functions of: Input devices Output devices Storage media
- 4. INTRODUCTION Input device? Input : Enter data Input : Enter data An input device is a piece of hardware that is used to enter data into a computer.
- 5. INTRODUCTION Output device? Output : Produce Output : Produce results / data results / data piece of hardware that is use to get information OUT of a computer
- 6. INTRODUCTION Storage device? Storage : keep / save Storage : keep / save data data A device used for storing information/data.
- 7. INPUT DEVICES Keyboard Mouse Input devices Scanner Joystick Input devices
- 8. Keyboard a set of alphanumeric and command keys used to input information to a computer
- 9. Mouse and Joystick act as a pointing device controlling device Scanner a device that scans images, printed text, handwriting, or an object, and converts it to a digital image.
- 10. OUTPUT DEVICES OOuuttppuutt ddeevviicceess Printer Monitor Plotter Projector
- 11. PRINTER a printer is a device that accepts text and graphic output from a computer and transfers the information to paper.
- 12. MONITOR A display screen used to present information from a computer
- 13. PLOTTER 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.
- 14. PRINTER VS PLOTTER Printers Plotters
- 15. STORAGE DEVICES Floppy disks ssttoorraaggee ddeevviicceess Hard disk A zip disk Pen drive
- 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. EXERCISE Sort these devices into the correct column. * scanner * printer *keyboard * mouse * monitor * joystick * speakers Input devices Output devices
- 18. SUMMARY Always remember: Input device is a device that used to enter data Output device is a device which capable of representing information from a computer Storage media is a device that stores / keep data
- 19. RESEARCH – GOOGLE, SEARCH THE FOLLOWING DEVICES: Input devices?Output devices? Touchscreen Digital camera Projector
- 20. END LESSON