fiber(FY-ber) In food, fiber is the part of fruits, vegetables, legumes, and whole grains that cannot be digested. The fiber in food may help prevent cancer.
fiber amplifierA device that amplifies an optical signal directly, without the need to convert it to an electrical signal, amplify it electrically, and reconvert it to…
fiber axisThe longitudinal center of symmetry of an optical fiber, i.e., the locus of points that are determined by the centers of mechanical symmetry of the…
Fiber Distributed Data Interface (FDDI)(FDDI)A media access (transmission) control-level protocol with token-ring architecture, a communication bandwidth of 100 Mbps and supported on a fiber network…
fiber optic linkA communications link that transmits signals by means of modulated light propagated in an optical fiber.
fiber optics (FO)The branch of optical technology concerned with the transmission of light through fibers made of transparent materials such as glasses and plastics.
FiconMainframe channel devised by IBM that supports data rates of 1 Gbit/s at distances from about 10 to 20 kilometers over fiber.
FICON (Fibre Connectivity)a fibre optic technology that provides higher speeds at longer distances than ESCON. See ESCON.
fidelityThe degree to which a system, or a portion of a system, accurately reproduces, at its output, the essential characteristics of the signal impressed upon…
FidoNetA network designed for e-mail distribution through individual bulletin board systems rather than through Internet servers.
fieldField A region of space at each point of which a given physical or mathematical quantity has some definite value.
Field collapsingUsed in order to collapse a group of results with similar value for a given field to a single entry in the result set.
field data collectorAn electronic device that collects and stores observation information from survey instruments.
field intensityThe irradiance of an electromagnetic wave under specified conditions. Note: Field intensity is usually expressed in watts per square meter.
Field of View (FOV)The angular measure of the volume of space within which the system can respond to the presence of a target.
Field ResearchThe gathering and research of information at the physical location; as opposed to research or information gathering in the office.
field strength1. The magnitude of an electric, magnetic, or electromagnetic field at a given point.
field weightThe relative importance of a text field in a search index. Field weights control how much matches in particular text fields affect a document's relevance…
field wireA flexible insulated wire used in field telephone and telegraph systems. Note 1: WD-1 and WF-16 are types of field wire.
field-disturbance sensorA restricted radiation device which establishes a radio frequency field in its vicinity and detects changes in that field resulting from the movement of…
fielded searchA query that is restricted to a particular field.
FIFOFirst In, First Out. See also "LIFO". Also, a nickname for a "named pipe".
FIFO (first in, first out)The (FIFO) semantics of a queue data structure. Items are removed in the order in which they arrived in the queue, so older items are always removed…
Fighting Mirror (FMIR)Part of the GBL System. The low orbit mirror, which receives laser energy and reflects it to the target.
Figure of Merit (FOM)The numerical value assigned to a measure of effectiveness, parameters, or other figure, as a result of an analysis, synthesis, or estimating technique.
fileTo place a paper in the official custody of the clerk of court/court administrator to enter into the files or records of a case.
file ACL classThe property of a file indicating access permissions for a process related to the process' user or group identification.
file allocation table (FAT)Common file format of file cataloging for DOS and Windows operating systems; physical method of storing and accessing files from a hard disk.
File and Registry VirtualizationA feature that allows standard users to run applications that normally write to per-computer files and registry keys.
file breakTermination of a file at regular periodic intervals to facilitate continuous disposal or transfer of the file series.
file classification systemA logical and systematic arrangement for classifying records into subject groups or categories based on some definite scheme of natural relationships…
File ConversionChanging data or a file from one format to another. For example, Native files may be converted from their original source format (e.g.
File DataData which has an associated file system.
file descriptorThe little number the "operating system" uses to keep track of which opened "file" you're talking about.
file guideA separation device that denotes a section of a file and directs the user to that section quickly See also finding aid and guide.
File Infector VirusA virus that attaches itself to a program file, such as a word processor, spreadsheet application, or game.
file integrityBeing accurate, complete, and in original order Being free of corruption
File Integrity CheckerSoftware that generates, stores, and compares message digests for files to detect changes to the files.
file lockThe implicit state of a file when opened by a client. Depending on the open mode, the file may be locked so as to prevent any other access, or certain…
file maintenanceactivity of preserving the integrity and/or maintaining the currency of a file by reviewing, deleting duplicates, and/or adding information
file markData on a tape that signals the boundaries of a tape file.
file nameThe name given to a group or series of related documents contained in a physical file folder A specific electronic document or record name
File Name Anomaly1) A mismatch between the internal file header and its external extension; 2) A file name inconsistent with the content of the file (e.g.
file name extensionA suffix that is preceded by a decimal (".") and that is appended to a computer file name. Note: Common filename extensions with their meanings are: .
file other classThe property of a file indicating access permissions for a process related to the process' user and group identification.
file planA classification scheme describing different types of files maintained in an office, how they are identified, where they should be stored, how they should…
file privilege attributeA per-file privilege value that specifies global behavior for all privileges defined in the implementation [POSIX.6].
file privilege flagA per-privilege attribute of a file that is used during exec() processing in computing the privileges of any process executing that file [POSIX.6].
file privilege stateA state variable that identifies a value for all defined file privilege flags for all privileges defined in an implementation and a value for all file…
file protectionThe execution of appropriate administrative, technical, or physical means to guard against the unauthorized access to, modification of, or deletion of a…
file recoveryrestoration of electronic documents, records, and/or files that have been corrupted, lost, or destroyed, utilizing backups
file security[A] means by which access to computer files is limited to authorized users only. [INFOSEC-99]
File ServerWhen several or many computers are networked together in a LAN situation, one computer may be utilized as a storage location for files for the group.
file share witnessA new type of Majority Node Set (MNS) quorum in Windows Server 2003. In Exchange Server 2007, cluster continuous replication (CCR) uses the MNS quorum…
File SystemThe engine that an operating system or program uses to organize and kept track of files.
file test operatorA built-in unary operator that you use to determine whether something is "true" about a file, such as -o $filename to test whether you're the owner of the…
file transferMoving named files from one computer or network to another
File Transfer ProtocolThe File Transfer Protocol (FTP) defines a standard set of rules that make it possible to transfer a file from one file system to another.
File Transfer Protocol (FTP)(FTP)A method of data transfer that can take place between Frame Relay Networks, and Workstations.
File TraverserA tool for accessing the files (e.g. Microsoft Word, HTML, and XML files) thatÃÂ are located on a standard file system in order to bring them into the…
file unitThe middle level of hierarchical description as defined by NARA, which describes an organized unit of documentary material grouped together either for…
file-level ACLIn a Windows system, a list of permissions associated with a file that determines a user's or group's rights to access the file.
file-oriented applicationsApplications concerned with the storage, manipulation, and exchange of information between application processes in the form of files. [T1.210-1993]
file/registry virtualizationA feature that allows standard users to run applications that normally write to per-computer files and registry keys.
fileglobA "wildcard" match on filenames. See the glob function.
filehandleAn identifier (not necessarily related to the real name of a file) that represents a particular instance of opening a file until you close it.
FilenameThe name of a file, excluding root drive and directory path information. Different operating systems may impose different restrictions on filenames, for…
filerAn appliance that attaches to a computer network and is used for data storage. NetApp filers operate using Data ONTAP software.
FilerViewA Web-based tool for administering NetApp filers, which provides access through a graphical user interface. Developed by Network Appliance.
filesA collective term usually applied to all records of an office or agency.