dr. c. jayawardena new entrance 2013 new entrance 2013
TRANSCRIPT
Dr. C. JayawardenaDr. C. Jayawardena New entrance 2013New 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
Process
Output
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
Output devices
Monitor or screen• Text• Numbers• Symbols• Art• Photographs• Video
Printer• Black and white• Color
• Convert from electronic form to some other form
• May display the processed results
Getting Connected
• User’s computer must connect to a server
What can we do with computers ?
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
Learn English
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
• 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/
Introduction to browsing & e mails
Web search engines
The peon needs a address to deliver letter
Network needs the same; address baro httpowww
Search using GoogleGoogle
• Search for ‘hand washing techniques’
Key in the Key in the search terms search terms in the search in the search boxbox
Use advanced search to perform a more specific search
• E.g. To retrieve information on hand washing techniques published only in English
• A PowerPoint presentation on hand washing techniques published in English
• A PowerPoint presentation on hand washing techniques published in English published by a university… Hint: Universities are in academic .ac or educational .edu domains
Add bookmarks• Help you to open websites without searching
Pubmed: for Pubmed: for publications in publications in relation to relation to medicinemedicine
Use of CAL-room
• 200 MB for each student• Restrict only for academic purposes
• Write your e mail address in the given sheet