A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Open-standard
Because of the proliferation of handsets and technology in the mobile market, open standards exist to make sure every application works on - and with - every other application and handset.

Operating System
The operating system (also known as OS) is the program, after initially being loaded into the computer, which manages all the other programs in the computer. Windows 2000 and Linux are examples of operating systems.

Optical Audio Terminal
Enables digital audio signals to be sent from digital sources such as DVD and laser disc players to digital play-back equipment such as Dolby Digital TVs, via a fibre-optic connection

Optical Cable
Used to carry digital sound from a DVD player to an AV amplifier. Can also be used to connect a CD player or Minidisc player to an amplifier.

Optical Digital Out
This allows a very high connection to another digital device such as a CD/Minidisc recorder or Digital-capable amplifier.

Optical Zoom
Creates a zoomed in picture by physically moving two lenses. Creates a closer image without any loss of quality as occurs when electronically magnifying the image (Digital Zoom). Most modern digital camcorders have an optical zoom up to about 20x - digital zoom of up to 800 x then takes over.