1. S OLON H ARMONY B. D OLOR EDUC 190 – C OMPUTERS IN E DUCATION

5. Apple iOS Mobile Operating System Yahoo! Chat Client Microsoft Word Microsoft Windows Operating System Apple Safari Browser

6. Google Android Mobile Operating System Pidgin Chat Client Oracle OpenOffice Writer Ubuntu Linux Operating System Mozilla Firefox Browser

7. Stable system support Guaranteed to be safe Easier to install and update Stable / Fast deployment / Comprehensive support

8. Often expensive Nearly impossible customization Least freedom Costly / Less control

9. Free Customizable Most Freedom Economical / Most control

10. Often requires in-depth technical knowledge No guarantee of platform development Often no stable platform support Unfamiliar and requires a steep learning curve for average users

11. 23 It depends on: 1 OR

12. Sources 1 Proprietary software. (2011, January). Retrieved from http://www.businessdictionary.com/definition/proprietary-software.html 2 Open source. (2011). Webopedia. Retrieved February 2, 2011, from http://www.webopedia.com/TERM/O/open_source.html Advantages & disadvantages of proprietary software. (2011). Informally published manuscript, Portal Rasmi Jabatan Pelajaran Negeri Kedah, Malaysia. Retrieved from http://www.kedah.edu.my/sahc/a_portal/portal_tekvok/ict/nota_com_sys/M icrosoft%20Word%20-%20les_57.pdf Gonzalez-Barahona, J.M. (2000, April 24). Advantages of open source software. Retrieved from http://eu.conecta.it/paper/Advantages_open_source_soft.html Gonzalez-Barahona, J.M. (2000, April 24). Perceived disadvantages of open source models. Retrieved from http://eu.conecta.it/paper/Perceived_disadvantages_ope.html