- Object Oriented Programming
- An approach to programming which involves the building of abstracted code objects designed to interact with each other. This is an alternative to the simpler but more common 'procedural programming method'. JAVA and C++ are examples of well known languages that often use this method.
- Opera is a Web browser developed by a Norwegian company. Opera is available for a large number of platforms including Windows, Linux, Mac OS X, FreeBSD, Solaris, OS/2 and Symbian OS. The source code of Opera is not free. A mobile version of Opera is the leading commercial web browser for PDAs and mobile phones.
- OS X
- Macintosh Operating System X is the most recent Mac OS, originally released in 2001, but re-released since.