Information Management


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There are 410 entries in the glossary.
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Term Definition
Error RateStorage products. (ANSI) The ratio of the number of data units in error to the total number of data units.
 
Error Rate, UncorrectableStorage products. This is a function of the raw bit error rate and the error detection and correction system used, and is measured by the ratio of the number of hard (uncorrectable) errors to the total user capacity.
 
EthernetNetworking. Network architecture originally developed by Digital, Intel and Xerox (DIX). Ethernet uses a bus topology where each device on the network is connected to a single cable. Ethernet was ratified by the IEEE as standard IEEE 802.3. Note that there is a minor difference between DIX Ethernet and 802.3 which means they are not compatible. Ethernet uses CSMA/CD as a media access method.
 
Ethernet 802.2Networking. Default Ethernet frame type used in Novell Netware 4.x networks.
 
Ethernet 802.3Networking. Default Ethernet frame type used in Novell Netware 2.x and 3.x networks.
 
Ethernet IINetworking. Ethernet frame type used in TCP/IP and multi-protocol networks
 
Ethernet SNAPNetworking. SubNetwork Address Protocol. Ethernet frame type used in EtherTalk networks.
 
EthertalkNetworking. Protocol for running AppleTalk over Ethernet IEEE 802.3 networks.
 
EvidenceInformation that tends to prove a fact. Not limited to the legal sense of the term. Evidential value Proof or evidence of the origins of an organisation/person and of how business is/was conducted.
 
Exabyte (EB)This is 2^60 bytes or 1024 petabytes.
 
Expert systemA computer programme developed to simulate human decisions in a specific field or fields. A branch of artificial intelligence.
 
ExtranetEssentially a semi-private Internet. It makes use of the same technology as the Internet but is used to establish a network that is only accessible within the organisation and selected external parties.
 
FacetA group of terms which share a common characteristic.
 
FailoverWhen one device stops working and another device automatically takes its place, typically after a set amount of time has lapsed since the first device stopped responding. Basically, the work done by the device figuratively fails over onto the other device.
 
FDDINetworking. Fiber Distributed Data Interface. Token passing ring network running at 100Mbps.
 
FDFThis is a format for handling forms within PDF documents.
 
FileAll the data comprising a document or part of a document (page image) held under a single naming code.
 
File nameThe physical name of the item required when it is checked-out onto the users desktop file system.
 
Finding AidA tool which describes the provenance of and the relationship between archival records, and which also supports retrieval of archival records. There exists a great variety of finding aids, such as overviews of fronds, inventories, indexes, etc.
 
Finding aidsReference material such as catalogues, lists and indexes providing information on the records and made available in the repository.
 
FirewallSoftware that protects an organisation's computer systems from problems such as viruses that can be carried by internet technologies or hackers seeking to gain unauthorised access.
 
Firewire (IEEE 1394)
A very fast external bus standard that supports data transfer rates of up to

400Mbps (in 1394a) and 800Mbps (in 1394b).


Products supporting the 1394 standard go under different names, depending on the company. Apple, which originally developed the technology, uses the

trademarked name FireWire. Other companies use other names, such as i.link and Lynx, to describe their 1394 products.


A single 1394 port can be used to connect up 63 external devices. In

addition to its high speed, 1394 also supports isochronous data --

delivering data at a guaranteed rate. This makes it ideal for devices that

need to transfer high levels of data in real-time, such as video devices.


Like USB, 1394 supports both Plug-and-Play and hot plugging, and also

provides power to peripheral devices.

 
Flat FileA database that contains a single table and can be easily represented using plain text. This type of database contrasts with a relational database, which can contain any number of tables that are linked together. Often, to keep things simple when transferring data between organizations, people will request a flat file. Common flat file text formats include tab-delimited and CSV.
 
FLOP (Floating Point Operation)This describes a single manipulation of a floating point number in a microprocessor. One measure of the speed of a microprocessor is how many FLOPs can be accomplished in a second.
 
FUD (Fear, Uncertainty and Doubt)The practice of spreading general unease about a situation where all the details are not known or not controllable.
 
Full Text SearchDocuments may be indexed and searched for based on the content of the document. Alternate formats may be used for indexing. Metadata may also be full text indexed .
 
Functional requirementA statement of WHAT the system is required to do.
 
Fuzzy LogicA form of boolean logic that deals with the idea of partial truths. Truth can be considered as a scale between completely true and completely false. Often used in decision making systems dealing with imprecise data.
 
G ListStorage products. SCSI Term. This list contains the positions of defective logical data blocks specified by the INIT with the REASSIGN BLOCKS command, positions of defective logical data blocks allocated by the IDD automatic alternate block allocation. It also contains information specified by the D list and information generated for the C list. The whole list may read by the INIT through the READ DEFECTIVE DATA command.
 
GammaScanners. A mathematical function used to describe the relationship between input densities (levels) and output densities (levels.) The measure of how compressed or expanded dark or light shades become in an image.
 
Gamma CorrectionScanners. The correction of tonal ranges in an image, normally by the adjustment of tone curves.
 
GCR (Grey Component Replacement)Scanners. A technique for reducing the amount of cyan, magenta and yellow in an area and replacing them with an appropriate level of black
 
GDA (General Disposal Authority)A disposal schedule covering the disposal of records common to a number of public offices, for example, local and central government departments.
 
GeckoGecko is a free web browser layout engine designed to support open Internet standards such as HTML 4.0, CSS 1/2, the W3C Document Object Model, XML 1.0, RDF, and JavaScript. It is written in C++. Gecko is developed by the Mozilla Foundation under the project names NGLayout (the renderer) and XPFE (for cross-platform user interfaces). NGLayout was previously called Raptor and originally meant "Next Generation Layout", but has been adopted by Netscape to be "Netscape Gecko Layout". Gecko offers a rich programming API (http://www.mozilla.org/projects/embedding/) that makes it suitable for a wide variety of roles in Internet enabled applications, such as web browsers, content presentation and client/server. Primarily it is used for the Mozilla browser derivatives such as Netscape and Mozilla Firefox, but it is used elsewhere as well.
 
Gigabyte (GB)
One Gigabyte = 1,000,000,000 bytes (decimal value)

                          1,073,741,824 bytes (binary value)

 
GNUA free software movement whose acronym stands recursively for "GNU's Not Unix." GNU was started in 1984 as a means to create an entire system of software, including operating systems, programming languages, and applications that are all free. In this context free means free of cost, free to distribute, free to modify, and free to distribute modified versions. The main thing you are not free to do is claim ownership of GNU software.
 
GogoolThis stands for the number 10 raised to the power of 100 (10^100), or a one followed by 100 zeros.
 
GogoolplexThe number 10 raised to the power of 1 google, or (10^(10^100)), which is the number 1 followed by 10^100 zeros.
 
GopherA menu driven information retrieval system used for searching the Internet across servers by making choices from a hierarchical system of menus.
 
Government Secure Intranet (GSI)An intranet that links UK government departments.
 
GPL (GNU Public Licence)The short of it is quite simple: if you based anything on GPLed software, you MUST provide the source code to your software upon request. The legalities of this simple concept go on at great length, and periodically new revisions of the GPL appear as holes are found and fixed. The primary rival to this is the BSD license, which is "free beer" for the community, but developers of FreeBSD license software can choose to keep their source hidden.
 
GreyscaleScanners. 1. An image type consisting of shades of grey, with no colour. The standard greyscale image contains 8 bits per pixel, which allows for 256 shades. 2. The depiction of grey tones between black and white. A greyscale monitor is able to display distinct grey pixels as well as black and white ones, but not colour pixels. 3. An orderly variable progression in definite steps of grey densities ranging from minimum zero (white) to maximum density (black). A strip of standard grey tones placed at the side of the original copy during a photography to measure tonal range obtained. Used in processing film or materials such as photographic paper and plates.
 
Grounded TheoryAn inductive, theory discovery methodology that allows the researcher to develop a theoretical account of the general features of a topic while simultaneously grounding the account in empirical observations or data. Martin and Turner 1986.
 
GroupA discrete sub-set of an archive e.g. the records of a department within an organisation or the papers of an individual within a family archive
 
GSMPrinters / Scanners. A measure of paper weight, often used to indicate thickness. 64 gsm indicates that one square metre of this paper weighs 64 gramms.
 
GUI (Graphical User Interface)Enables computer users to select applications and functions by selecting on-screen icons using a mouse or a similar pointing device.
 
GuidelinesDocuments written to provide guidance on how to undertake various tasks.
 
HackerSomeone who seeks to understand computer, phone, or other systems strictly for the satisfaction of having that knowledge. Hackers wonder how things work, and have an incredible curiosity.
 
HalftonePrinters / Scanners. A simulation of continuous tones by the use of black or overlapping process colour dots of varying size or position.
 
Halftone ScreenPrinters / Scanners. A pattern of dots of different sizes used to simulate a continuous tone photograph, either in colour or black and white.
 


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Glossary V1.8
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