Out-of-Band Appliance
This is in addition to In-Band Appliance, another very new storage virtualization architecture approach, in which the standard appliance software by the server CPU platform, convert the special-purpose appliance. However, unlike in-band appliance, this program will control and data flow of the two are separated.
Out-of-band appliance solely responsible for the management and control, for example, change the storage configuration or access control or anyone else involved the establishment of snapshots (snapshots), and data I / O is the host server and storage subsystems flow. This appliance can also be seen as a virtual server or an asymmetric storage virtualization architecture.
Virtual server usually requires a logical disk capacity management and a control class, the former management of SAN connectivity equipment, while the latter is responsible for the host server (or an HBA or a fabric device within the embedded "off-host") on the virtualization client communications. Virtual client in setting or re-configuration during the collection of physical storage of information from the appliance. All the storage configuration from a virtual client requests are sent to the virtual server, for these provide a simplified and highly centralized management model.

Over clock Hardware
Over clocking, increased by more than the system clock manufacturers specification range.

Overflow Programming
Overflow, an operation result exceeds the size of a variable can hold.

Overloading Programming
Overload, object-oriented programming (OOP), an operator (OPERATOR) because of the context in (CONTEXT) different and have different significance.

Oxygen Alliance
Oxygen Alliance in June 2000 by the Massachusetts Institute of Technology and the six world-class makers, which include HP, Nokia, NTT, Philips and domestic Acer, Delta Electronics.
Their claims could be as computer technology, like oxygen, essential, omnipresent, but not its presence felt. It is that unity of ideal man-machine would be more humane with the information technology evolution, naturally rooted in human life.
Oxygen present results of cooperation, including voice recognition, video surveillance, intelligent agent technologies.