20,531 terms including subtopics (0 terms filed directly here)
Technology terms
RestoreTo transfer data from a backup medium (such as tapes) to an on-line system, often for the purpose of recovery from a problem, failure, or disaster.
restricted accessA limitation on access to records or to information of a specified type imposed by general or specific requirements See also classified record…
restricted access tokenAn access token with restricted access to securable objects or performing privileged tasks.
restricted channelIn digital communications systems, a channel that has a useful capacity of only 56 kb/s (kilobits per second), instead of 64 kb/s.
restricted networkA logical portion of the network where client computers that either do not meet health policy or are not capable of asserting that they meet health policy…
restricted tokenAn access token with restricted access to securable objects or performing privileged tasks.
restrictionif two or more independent and distinct inventions are claimed in a single application, the examiner may require the applicant to elect (designate) a…
restriction certificateIn secure systems, an authorization certificate that indicates the security restrictions on documents and transactions that an entity may authorize.
ResubmissionMuch like search engine submission, resubmission is generally a useless program which is offered by businesses bilking naive consumers out of their money…
Resubmittingsubmitting your web page address(es) to search engines after you've already submitted those addresses previously or after the search engine has already…
Result setThe result set is a set of Document Summaries returned for a query.
Result-side (shallow) navigatorsA type of dynamic drill-down navigator. Drill-down navigators are created across an extended but non-exhaustive result set (typically, the 200 highest…
Results clusteringGrouping similar results together to make it easy to see which results relate to each other.
Results transformationThe algorithmic processing of search results, which includes result-set reordering (e.g.
Results-based binningResults-based binning performs ad-hoc clustering of results into dynamic bins based on value distribution for this parameter in the results.
resynchronizationThe process of making the data between two sites consistent and current once systems are restored following a failure. Also called data resynchronization.
RetensioningThe process where a tape is unspooled onto a take-up reel and then rewound at a controlled tension and speed.
retentionto keep and maintain a record for its useful life. See short-term retention; long-term retention; mid-term retention; and permanent retention.
retention periodGenerally speaking, the precinct election records must be preserved by the authority to whom they are distributed: (1) in an election involving a federal…
retention programA system established and maintained to define retention periods for records in an organization
retransmission bufferStorage in the signaling link control for signal units that have been transmitted but not yet positively acknowledged. [T1.226-1992]
retrievalThe process of locating and withdrawing a record from a filing system or records center The action of accessing information from stored data on a computer…
retrieval (of documentary material)The process of locating material, getting material from storage and preparing them for presentation or output.
retrieval ratiotime required to locate a record, which is determined by dividing the total minutes used to retrieve items by the total number of requests
retrieval serviceIn interactive telecommunications, a service allowing access to and retrieval of stored information, e.g., the information within a database.
Retrograde OrbitAn orbit having inclination of 0 to 90 degrees (See Prograde Orbit).
ReturnYour return is the profit or loss you have on your investments, including income and change in value.
return lossThe ratio, at the junction of a transmission line and a terminating impedance or other discontinuity, of the amplitude of the reflected wave to the…
return statementA statement used to terminate the execution of a method. A method with void return type may only have return statements of the following form return; A…
Return SupervisionSignaling which responds to an incoming request for service or change of status.
return typeThe declared type of a method, appearing immediately before the method name, such as void in public static void main(String[] args) or Point[] in public…
return valueThe value of the expression used in a return statement.
return-to-zero (RZ)A digital code having two information states, e.g., "0" and "1" or "mark" and "yyspace", in which code the signal returns to a rest state during a portion…
Reverse EngineeringThe process of analyzing a system to identify its intricacies and their interrelationships, and create depictions of the system in another form or at a…
Reverse IndexAn index of keywords which stores records of matching documents that contain those keywords.
reverse proxyA specific deployment of a proxy server as a front-end accelerator between the origin servers and the incoming user connections.
reverse proxy serverA reverse proxy server is similar to a regular proxy server used for outbound network traffic except that it relays connection requests for inbound…
reverse-battery signalingLoop signaling in which battery and ground are reversed on the tip and ring of the loop to give an "off-hook" signal when the call receiver answers.
reversible public key cryptographyAn asymmetric cryptographic algorithm whereby (a) messages encrypted using the public key can only be decrypted by using the private key, and (b) data…
revertive pulsingIn telephone networks, a means of controlling distant switching selections by pulsing.
REVICRevised Enhanced Version of Intermediate COCOMO (Computer term).
review determinationA decision reached in an access review as to whether material will be fully released, partially released, redacted, withdrawn, or withheld.
Revisit IntervalThe time that elapses between successive observations of an object from a single sensor.
RevocationWithdrawing the protections associated with a patent grant.
Revoke a CertificateTo prematurely end the operational period of a certificate effective at a specific date and time.
rf power marginThe amount of transmitter power above that which is computed by the link designer as the minimum required to meet specified link performance.
rf tightOffering a high degree of electromagnetic shielding effectiveness.
RFCRiver Forecast Center. Centers that serve groups of Weather Service Forecast offices and Weather Forecast offices, in providing hydrologic guidance and is…
RFC (Request for Comments)An official document of the Internet Engineering Task Force (IETF) that specifies the details for protocols included in the TCP/IP family. [Exchange 2007]
RFERequest For Enhancement. Request for change or enhancement to an existing system or application.
RGB Color ModelA color model based upon representing a color as three components: red, green and blue. See HSB Color Model.
RGC (Routing Group Connector)A connector in Exchange 2000 that connects routing groups to one another. An RGC is uni-directional and can have separate configuration properties (such…
RHETT II(1) Russian Half Effect Thruster Technology Program. (2) Russian Hall Electric Thruster Test.
rhombic antennaA directional antenna that is composed of long-wire radiators that form the sides of a rhombus, the two halves of which are fed equally in opposite phase…
RHSA cluster software component that provides a communication, monitoring, and processing layer between the Cluster service and one or more clustered…
ribbon cableAny cable constructed as a ribbon with parallel elements. 2. A fiber optic cable in which the optical fibers are held in grooves and laminated within a…
rich-text fieldA field that can contain text, objects, file attachments, and pictures. Notes users can tell they are in a rich-text field if the status bar at the bottom…
RIDThe portion of a security identifier (SID) that identifies a user or group in relation to the authority that issued the SID.
Ridge EndingA minutiae point at the ending of a friction ridge, as illustrated below. See also bifurcation, friction ridge.
ridgelineA line representing the intersection or top between opposite slopes. Commonly used as a parcel line.
right shiftA "bit shift" that divides a number by some power of 2.
right shift operatorThe right shift operator (>>) is a bit manipulation operator. It moves the bits in its left operand zero or more places to the right, according to the…
right-hand (or clockwise) polarized waveAn elliptically or circularly polarized wave, in which the electric field vector, observed in any fixed plane, normal to the direction of propagation…
RIM (records and information management)field of management responsible for the efficient and systematic control of the creation, receipt, maintenance, use, and disposition of records, including…
ringIn telephony, a signal of specific duration and character that indicates to a user (customer, subscriber) that a calling party is engaged in an access…
ring latencyIn a ring network, such as a token ring network, the time required for a signal to propagate once around the ring.