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Computers

Computers. Dr. C. Jayawardena New entrance 2013. Computer System. People Software Hardware. Software. Programs Set of instructions that directs the hardware to do a required task and produce the desired results. Hardware -Basic Components. Function of Computer System. Input

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Computers

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  1. Computers Dr. C. Jayawardena New entrance 2013

  2. Computer System • People • Software • Hardware

  3. Software • Programs • Set of instructions that directs the hardware to do a required task and produce the desired results

  4. Hardware -Basic Components

  5. Function of Computer System Input Process Output

  6. Input devices • Accept data or commands and convert them to electronic form • Getting data into the computer • Typing on a keyboard • Pointing with a mouse • Scanning with a bar-code reader • Terminal

  7. Monitor or screen Text Numbers Symbols Art Photographs Video Printer Black and white Color Output devices • Convert from electronic form to some other form • May display the processed results

  8. Getting Connected • User’s computer must connect to a server

  9. What can we do with computers ? Learn English http://www.bbc.co.uk/worldservice/learningenglish/language/ Webster dictionary Free dictionary http://www.nlm.nih.gov/medlineplus/anatomyvideos.html http://www.dartmouth.edu/~anatomy/ http://anatomy.med.umich.edu/home.html http://library.med.utah.edu/neurologicexam/html/home_exam.html http://nhscience.lonestar.edu/biol/ap1int.htm#brain

  10. What can we do with computers ? http://www.lab.anhb.uwa.edu.au/mb140/ http://www.merriam-webster.com/dictionary http://ect.downstate.edu/courseware/haonline/quiz/practice/u4/quiztop4.htm http://www.surgical-tutor.org.uk/default-home.htm

  11. Some useful websites for Dentistry related information • http://www.youtube.com/watch?v=B46Djs4E_Z0 http://www.nlm.nih.gov/medlineplus/ency/imagepages/19395.htm http://www.fb4d.com/ http://ect.downstate.edu/courseware/haonline/index.htm http://www.lab.anhb.uwa.edu.au/mb140/

  12. Introduction to browsing & e mails Web search engines

  13. The peon needs a address to deliver letter • Network needs the same; address bar • http • www

  14. Search using Google • Search for ‘hand washing techniques’

  15. Key in the search terms in the search box

  16. Use advanced search to perform a more specific search

  17. E.g. To retrieve information on hand washing techniques published only in English

  18. A PowerPoint presentation on hand washing techniques published in English

  19. A PowerPoint presentation on hand washing techniques published in English published by a university… Hint: Universities are in academic .ac or educational .edu domains

  20. Add bookmarks • Help you to open websites without searching

  21. Pubmed: for publications in relation to medicine

  22. Use of CAL-room • 200 MB for each student • Restrict only for academic purposes

  23. Write your e mail address in the given sheet

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