In object-oriented programming, objects are the things you think about first in designing a program and they are also the units of code that are eventually derived from the process.

An early term that has lost ground to 'cloud computing', Office 2.0 refers to the trend of taking office applications and turning them into web applications, such as online versions of a word processor or spreadsheet.

Offline is the condition of being capable of but currently not connected to a network of computers or other devices.

The Ogg Vorbis format is an advanced binary audio format similar to (but more capable than) the MP3 format. It is patent and royalty free, and is supported on most platforms.

In relation to computer technology, "on the fly" describes activities that develop or occur dynamically rather than as the result of something that is statically predefined.

Online is the condition of being connected to a network of computers or other devices. The term is frequently used to describe someone who is currently connected to the Internet.

In general, open source refers to any program whose source code is made available for use or modification as users or other developers see fit.

The browser from the company Opera.

Outline Processor Markup Language
is an XML format for outlines. Originally developed by Radio User Land as a native file format for an outliner application, it has since been adopted for other uses, the most common being to exchange lists of RSS feeds between RSS aggregators. The OPML specification defines an outline as a hierarchical, ordered list of arbitrary elements. The specification is fairly open which makes it suitable for many types of list data: Play list, Directory, etc.

Operating System
The software that manages the basic operating of a computer.