A command center or command centre is any place that is used to provide centralized command for some purpose.  A command center enables an organization to function as designed, to perform day-to-day operations regardless of what is happening around it, in a manner in which no one realizes it is there but everyone knows who is in charge when there is trouble.

A user interface to a computer's operating system or an application in which the user responds to a visual prompt by typing in a command on a specified line, receives a response back from the system, and then enters another command, and so forth. 

A standard for the online exchange of business transaction information in common formats. It defines the structure of purchase orders, order acknowledgements, and other core e-business documents. 

In frame relay networks, a committed information rate (CIR) is a bandwidth (expressed in bits per second) associated with a logical connection in a permanent virtual circuit (PVC). 

An international standard interface that applications can use to communicate directly with ISDN equipment. Using CAPI, an application program can be written to initiate and terminate phone calls in computers equipped for ISDN. 

Common channel signaling (CCS) is signaling (for example, in a T-carrier system line) in which a group of voice-and-data channels share a separate channel that is used only for control signals. 

A standardized graphical user interface (GUI) for open systems. CDE and similar interfaces, such as KDE, offer a more intuitive and user-friendly way to interact with the OS than the command line interface traditionally included with open systems.

A standard way for a Web server to pass a Web user's request to an application program and to receive data back to forward to the user. 

A program that searches for known vulnerabilities in Web servers and application programs by testing HTTP requests against known CGI strings. The limitation of CGI scanners is they fail to detect the presence of undefined vulnerabilities.

A computer industry standard for defining device and application characteristics so that system administrators and management programs will be able to control devices and applications from different manufacturers or sources in the same way. 

A protocol that lets programs make requests for files and services on remote computers on the Internet. CIFS uses the client/server programming model. 

CLI enables an application program written in any of several commonly-used programming languages to be run on any operating system using a common runtime program rather than a language-specific one. 

CLR is programming that manages the execution of programs written in any of several supported languages, allowing them to share common object-oriented classes written in any of the languages. 

  A network management protocol built on the OSI communication model. CMIP defines services for accessing information about network objects or devices, controlling them, and receiving status reports from them.

An architecture and specification for creating, distributing, and managing distributed program objects in a network. It allows programs at different locations and developed by different vendors to communicate an "interface broker".

A proposed standard protocol for exchanging network policy information between a policy decision point (PDP) in a network and policy enforcement points (PEPs) as part of overall Quality of Service (QoS).