ORTAOffice of Research and Technology Applications.
orthogonal multiplexA method of combining two or more digital signals that have mutually independent pulses, thus avoiding intersymbol interference.
orthogonal samplingIn digital video, a sampling where the luminance and the color-difference samples are generated from pixels arranged in common, continuous vertical and…
Orthographic analysisOrthographic analysis is used in checking for typos and, official variants (for example, German spelling).
orthomode transducerA device forming part of an antenna feed and serving to combine or separate orthogonally polarized signals.
orthophotographAerial photographs that have been processed to correct for scale variations and image displacement resulting from relief or terrain variations and camera…
orthophotographyThe process of aerial photographs that have been rectified to produce an accurate image of the Earth by removing tilt and relief displacements which…
OS (operating system)the program that, after being initially loaded into the computer by a boot program, manages all the other programs in a computer and their interaction…
OS principalA principal native to the operating system on which the J2EE platform is executing.
other common carrier (OCC)A communications common carrier--usually an interexchange carrier--that offers communications services in competition with AT&T and/or the established U.S.
OU (organizational unit)An Active Directory container object used within domains. An organizational unit is a logical container into which users, groups, computers, and other…
out callA universal personal telecommunications (UPT) call type that permits a UPT user to make calls from any terminal on any network, and have access to his/her…
Out of Band Laser Flux(Sensor) Laser energy directed at a sensor that is intended to damage or disrupt the sensor and is outside the sensors bandwidth.
out of scopeA variable is in scope as long as the program's flow of control is within the variable's defining block. Otherwise, it is out of scope.
out-call registrationA feature that enables the universal personal telecommunications (UPT) user to register for outgoing calls from the current terminal address to allow…
out-of-areaAn area not included in the subscribed service. An area may be defined in terms of a state/province, NPA, LATA, etc. [T1.207-1998]
out-of-band emissionEmission on a frequency or frequencies immediately outside the necessary bandwidth which results from the modulation process, but excluding spurious…
out-of-band notificationIn encryption, notification using a communication means other than the primary communication means. [After X9.49]
out-of-band signalingSignaling that uses a portion of the channel bandwidth provided by the transmission medium, e.g.
out-of-bounds valueA redundant value used to indicate that a different action from the norm is required at some point.
out-of-frame-alignment timeThe time during which frame alignment is effectively lost. Note: The out-of-frame-alignment time includes the time to detect loss of frame alignment and…
out-slot signalingSignaling performed in digital time slots that are not within the channel time slot.
Out-YearsNormally, six years beyond the year being worked in the upcoming POM/budget.
outage thresholdFor a supported performance parameter of a system, the value that establishes the minimum performance level at which the system is considered to remain in…
outbound hostThe host computer that receives a newsfeed. [Exchange 5.5]
Outbound LinkA link from one website pointing at another external website. Some webmasters believe in link hoarding, but linking out to useful relevant related…
Outbound linkslinks that direct "off-site" to another website
outcardA device used to physically replace material that has been removed from a file that indicates what was taken, by whom, and when
outdialingA process in which Unified Messaging (UM) dials or transfers calls. Unified Messaging generally receives calls, but sometimes dials calls.
Outer Space Treaty of 1967A multilateral treaty signed and ratified by both the United States and the (former) Soviet Union.
outgoing accessThe ability of a user to originate data calls via an ISDN. [T1.615-1992]
outgoing mail databaseA file (Mail_.box) that temporarily stores outgoing mail that users create when not connected to a mail server.
OutlaysOutlays are payments made (generally through the issuance of checks or disbursement of cash) to liquidate obligations.
Outlook AnywhereA feature that makes it possible for a user to access their Exchange Server mailbox from any workstation using the full Outlook client, regardless of the…
Outlook E-Mail PostmarkA computational proof that Outlook applies to outgoing messages to help recipient messaging systems distinguish legitimate e-mail from junk e-mail.
Outlook Voice AccessA feature that allows a Unified Messaging-enabled user to access their Microsoft Exchange Server mailbox over the telephone.
Outlook Web AccessThe Web browser interface to Exchange Server mailbox and public folder data. The Outlook Web Access client in Exchange Server 5.
Outlook Web Access LightA lightweight version of Outlook Web Access optimized for accessibility and compatibility with the widest array of browsers and operating systems.
Outlook Web Access Web PartA piece of the user interface (UI) in Outlook Web Access that can be hosted in iframes as part of other Web applications such as SharePoint Portal Server…
outpulsingThe process of transmitting address information over a trunk from one switching center or switchboard to another.
output1. Information retrieved from a functional unit or from a network, usually after some processing. 2. An output state, or sequence of states. 3.
output ratingThe expression of the stated power available at the output terminals of a transmitter when connected to the normal load or its equivalent. 2.
Outside Line Access CodeThe prefix that is used to access an outside line. This prefix is typically 9. [Exchange 2007]
outside plant1. In telephony, all cables, conduits, ducts, poles, towers, repeaters, repeater huts, and other equipment located between a demarcation point in a…
Outside ThreatAn unauthorized entity from outside the domain perimeter that has the potential to harm an Information System through destruction, disclosure…