2. Components of a Computer System Jump to Hardware

3. Components of a Computer System Input Devices Key Board Function Keys Numeric Key Pad Wired And Wire less Key Board Available

5. Touch Screen

7. Components of a Computer System Input Devices Mouse X Y

8. Components of a Computer System Input Devices Tracker BallTouch pad

9. Components of a Computer System Input Devices Micro phoneDigital Camera

10. Video Conference

11. Components of a Computer System Input Devices Scanner OCR (Optical Character Recognition) +

12. Components of a Computer System Input Devices Finger Print Reader

13. Components of a Computer System Input Devices Magnetic Ink Character Recognition (MICR)

14. Components of a Computer System Input Devices Environment Sensors

15. Components of a Computer System Output Devices Cathode Ray Tube (CRT Monitors)

16. Components of a Computer System Output Devices Liquid Crystal Display (LCD Monitors) Less Space Low Power consumption Brightness images No Flickers or Distortion Expensive Limited View angles

17. Components of a Computer System Output Devices Printers Dot Matrix Ink Jet Laser

18. Components of a Computer System Output Devices Speakers Head phones

19. Components of a Computer System Device Drivers Software CDs provided with Devices + +

20. Components of a Computer System Software Computer Hardware Can be seen & touch Software Instructions given to computer Liveware People who work with computers

21. Components of a Computer System Software Software Operating Software Controls all the part of computer & lays between Hardware and Application Software Word processing Application Software System Software Utility programs Enhance the capability of an O/S Spread SheetData Base ManagementPresentationDesktop publishing & Graphic Design Web Design & Development

22. Components of a Computer System Graphical User Interface (GUI) & Command Line Interface (CLI) All the commands should be given by text commands can be given by clicking

23. Components of a Computer System Function of Operating System Hardware Application software Operating System (Works as a Bridge) I am Typing a Letter using MS word As Windows XP bring me to the Desktop

24. Components of a Computer System Booting the Computer POST – Power On Self Test CMOS Setup – BIOS – Basic Input Output System Boot Strap Loader 2008.10.25 08.25 AM