Widely used in Hong Kong, the Octopus card is used for purchases on public transport, in convenience stores, fast food restaurants and other places where purchases can be made. In addition it’s also used for office and residential premises access control. Each Octopus card looks like a basic credit card but has a built-in microchip containing an “electronic purse” and other applications that records transaction details. To use the card, owners simply wave the card over a reader and the information or financial transaction is completed automatically.
- Ogg Vorbis
Ogg Vorbis is an audio compression format, comparable to other formats used to store and play digital music, but differs in that it is free, open and unpatented. The Ogg Vorbis specification is in the public domain and if freely available for commercial or noncommercial use. In Ogg Vorbis, Ogg refers to the Ogg Project […]
- Ohm's Law
A mathematical equation that shows the relationship between electric voltage, current and resistance. Ohm��s Law was named after Bavarian mathematician and physicist Georg Ohm. Ohm��s Law can be stated as three mathematical equations, all derived from the same principle. In the following equations, V is voltage measured in volts, I is current measured in amperes […]
One of the leading producers of printers, especially dot-matrix and LED printers. Okidata is based in New Jersey, but is a subsidiary of OKI Electric Industry Company, a huge Japanese conglomerate.
- On-Screen Keyboard
) In Windows Vista the On-Screen Keyboard is an application which provides a visual keyboard on your display screen that can be used in place of a physical keyboard. The On-Screen Keyboard can be manipulated by the mouse or other pointing device and can be configured in three layouts; 101 keys display (standard keyboard) 102 […]
- Ontology Web Language (OWL)
The Ontology Web Language (OWL) is a set of markup languages which are designed for use by applications that need to process the content of information instead of just presenting information to humans. The OWL ontology describe the hierarchical organization of ideas in a domain, in a way that can be parsed and understood by […]