IT

http://en.wikipedia.org/wiki/Object-oriented_programming
http://en.wikipedia.org/wiki/C_Sharp
http://www.c-sharpcorner.com/
http://en.wikipedia.org/wiki/TopLink
http://en.wikipedia.org/wiki/J_Sharp
http://www.c-sharpcorner.com/UploadFile/mgold/WPFMortgageCalculator09232007212056PM/WPFMortgageCalculator.aspx?ArticleId=944bbf83-abe5-425a-8176-9663d80d0a7c
http://en.wikipedia.org/wiki/Extensible_Application_Markup_Language
http://en.wikipedia.org/wiki/Windows_Presentation_Foundation
http://en.wikipedia.org/wiki/Unified_Modeling_Language