Word	Acronyms	Meaning
Acetate-base film		A film substrate used in microfilm production. Acetate based film is subject to vinegar syndrome, even if stored correctly. Acetate base has been replaced by polyester which is thought to have a life span of about 500 years.
Client Access Server	CAS	CAS servers such as those designed and built by EMC are designed to replace standard storage with a storage system. The storage system must be tightly integrated into the programs they use it. In the case of a document imaging system, the image software
Compact Disk-Recordable	CD-R	Compact Disk Recordable is a digital media which can be written on once and read many times. Average CD-R media will last less then 25 years but certain brands of media have guarantees of 100 years to 300 years on archive gold CD-R media. CD-R storage sh
Direct Access Storage Device	DASD	Any secondary storage device connected to a mainframe or mini computer providing low access time to data. Examples: Disk Drives, Data Cells, Memory Drives
Document Imaging	DI	The process of capturing, storing and indexing images of documents from paper and electronic sources
Dots Per Iinch	DPI	The number of dots per square inch of display or paper. A typical monitor is 96DPI (96x96) or 9,216 dots per square inch.
Duplex and Double Sided Scanners		Duplex scanners scan both sides of a two-sided page at once while double-sided scanning uses a single-sided scanner to scan both sides.
EXchangeable Image Format	EXIF	Extensions to image file formats that hold the camera settings used to take the picture. Developed in 1995 by JEIDA for JPEG images, EXIF data was added to TIFF, RAW and other formats later. Most digital cameras support EXIF and save the data in the file
Fiber optic cable		A thin glass strand designed for light transmission that is capable of transmitting trillions of bits per second.
Fiche		Short for Microfiche. From the french word FICHE meaning CARD.
Field		The smallest logically distinguished unit of data in a record.
File		The data that describes a document, group of documents, images or other contained computer object.
File Server		The computer on the LAN/WAN where the shared software, files and services are stored and maintained.
First In First Out	FIFO	Queue handling method that operates on a first-come, first-served basis.
Fixed Disk		Fix Disk is another name for HARD DRIVE not meant to be removed.
Fixed spacing		All characters take up the same horizontal space, regardless of their widths. An "I" would take up the same space as an "M." Opposite of proportional spacing.
Font		A style of type associated to text and numeric data.
Footprint		The amount of space an object occupies. Commonly used to describe the space used by a scanner or other desktop device.
Formatted data		Data which has been placed in a structured format specific to the need of the user or software. Formatted data is often used to transfer information and instructions from one system or database to another.
Full text Indexing		Full text indexing is a technique combining OCR technology and document imaging together to allow a user to search for specific documents by searching for words contained on the page. Two kinds of retrieval are used with these systems. The first is Google
Globally Unique Identifier	GUID	The Globally Unique Identifier (GUID), is based upon the Universally Unique Identifier (UUID) standard. GUIDs are 128-bit numbers that are usually written as thirty-two hexadecimal digits grouped into five sections. The following is an example GUID: 8599
Graphical User Interface	GUI	Computer system which allows the user to command the computer by "pointing-and-clicking," usually with a mouse, at pictures, or "icons," rather than typing in commands.
Graphics		Pictures and drawings, either created by computer or entered into the computer by scanning or photographing.
Gray Scale		A range of shades from white to black that exist on an image. Scanners gray scale is determined by the number gray shades, or steps, they can recognize and reproduce. A scanner that can only see a gray scale of 16 will not produce as accurate an image as
GRID		A set of vertical and horizontal objects who's ID is used to locate the object. In the case of microfiche Rows which are usually numbered and columns which are commonly LETTERS so an image can be located by a grid reference such as E10. column E row 10.
Halftone		Halftone A graphic, usually created from a photograph, in which dots are used to represent continuous tones. Larger, densely placed dots which sometimes touch represent darker tones; smaller, widely spaced dots with white areas between them represent ligh
Handle		A small square at the corners and sides of a computer graphic image that represent the spot where the mouse cursor can be placed to manipulate (reduce, move, reshape) the image.
Hertz	Hz	Cycles per second. Often used with metric prefixes, as in kilo Hertz (kHz).
Highlight		Brightest part of a photograph or halftone.
Histogram		A bar-like graph showing the distribution of gray tones in an image.
Hollerith card (punch card)		A punched-hole 80-column card used for storing information for input into a computer. Hollerith cards have fallen out of use except for voting (remember the hanging Chad) and microfilm aperture cards.
Host Computer or HOST		Computer in which an application or database resides or to which a user is connected. Host computers are more familiar as main frames in the past but now have been converted into service computers such as web servers and application servers.
Hot Spot		The pixel that is activated by clicking on it with a mouse.
Hot Swap		A component or system runs in parallel within a system such as a RAID. Should one component fail, the other is already running and provides full service without interruption. Hot swap drives or servers.
Huffman encoding		A popular lossless compression algorithm replacing frequently occurring data strings with shorter codes. Some implementations include tables that predetermine what codes will be generated for a particular string. Other versions of the algorithm build the
Icon		The basis of a graphical user interface, an icon is a picture or drawing of a device or program which is activated, usually with a mouse, to access the device or run the program.
ID3 tag		A field of meta-data in MP3 and MP3pro audio files. The tags describe the contents, including song title, artist, album, year, comment, CD track and genre.
Image		The computerized representation of a picture or graphic.
Image processing		Like "data processing": it refers to the manipulation of raw data to solve some problem or enlighten the user in some way not possible without the manipulation. Examples deskew, despeckle, crop etc.
Image resolution		The fineness or coarseness of an image as it was digitized, measured as dots-per-inch. SEE DPI
Index		A descriptive set of data associated with a document for locating the document's storage location. In a more complex and demanding role, indexing can be used to consolidate documents that may not be, at first glance, related, or that may be stored in diff
information Float		The interval of time between the acquisition of information and its availability to a user.
Integrated document imaging		The coordinated management, use and presentation of documentation by an organization across different software and platforms.
Interlaced		Only every other line of pixels on a TV or computer terminal screen is refreshed on each "pass" (in American television, which is interlaced, every second line is refreshed 60 times a second). Interlacing thereby saves half the signal information that non
Interleaved		The system of writing to a hard disk that places data in non-contiguous tracks because of the rapidly spinning nature of a disk drive. The operating system keeps a "log" of where each sector of data is stored for retrieval later.
JPG/JPEG		Named after the Joint Photographic Experts Group is a commonly used compression for photographic images. JPG is a lossy technology as it can compress by losing the details in a photograph to make it smaller. Best used for photographs and not for document
Local Area Network	LAN	were invented to allow users to share files and services on a private network. Commonly used in an office to share files, software, devices such as printers and services like the Internet.
Metadata		Data that describes other data. Metadata can often be found within a file such as the information stored with an image when a digital camera takes a picture (EXIF) Digital music contains an ID tag that stores the song title and the artists name (ID3 tag)
Microfilm		an analog technology which stores the image of documents on silver halide film for long term archive storage. Microfilm has an expected shelf life of about 500 years. Film must be sealed tightly and kept in a cool, dry place or it's life span is shorten
Portable Document Format	PDF	File format for displaying images without the use of specific hardware, software or operating system. PDF is a common publishing format and used to exchange information but can be a poor choice for document storage systems. Commonly larger then TIF as PD
Proportional spacing		Character spacing based on the width of each character. For example, an I takes up less space than an M. In monospacing (fixed), the I and M each take up the same space.
Tagged Image File Format	TIF TIFF	Universal file format for storing images of all kinds including color, B/W, Compressed and Uncompressed. TIF is a lossless technology in that it does not lose any detail due to format or compression. Best format for binary document images.
WI-FI		The wireless version of Ethernet. WI-FI is only a catchy name and not an Acronym