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The process is known as computer output microfilm or computer output microfiche (COM). Within the equipment character images are made by a light source; this is the negative of text on paper. COM is sometimes processed normally.
Microfilm viewers allowed operators to view microfilm and depending on model, print from microfilm. IBM 9921 Document Viewer Model I [15] [16] $300 USD list price; 18 + 1 ⁄ 2 in × 18 in × 25 in (47 cm × 46 cm × 64 cm) in size; 14 in × 15 in (36 cm × 38 cm) view screen; Capable of 16:1, 24:1, 30:1, 38:1 magnification
A microfilm reader is a device used in projecting and magnifying images stored in microform to readable proportions. Microform includes flat film, microfilm, aperture cards, microfiche, and ultra fiche. Using open reels or cassettes, microfilm is often used as a way to store many documents in a small space.
Document imaging is an information technology category for systems capable of replicating documents commonly used in business. Document imaging systems can take many forms including microfilm, on demand printers, facsimile machines, copiers, multifunction printers, document scanners, computer output microfilm (COM) and archive writers.
Splitting a film image into three colours in a Spirit DataCine scanning machine, 2006. The front end of a motion picture film scanner is similar to a telecine.The imaging system may be either a charge-coupled device (CCD), a complementary metal–oxide–semiconductor (CMOS) or photomultipliers imaging pick up.
The microfilm chip is most commonly 35mm in height, and contains an optically reduced image, usually of some type of reference document, such as an engineering drawing, that is the focus of the archiving process. Machinery exists to automatically store, retrieve, sort, duplicate, create, and digitize cards with a high level of automation.
A microfilmer is a machine used by the document management industry to create microfilm.These machines are also often called "imagers" in the industry. A microfilmer is a camera that is used to photograph documents to create a more compact and permanent record of the original in the form of roll-film or microfiche.
It was originally intended to make copying microfilm simpler, but also found a number of other uses. As the document processing world moved to computerized records, Kalvar was no longer in demand, and vesicular microfilm is now only made upon request. Kalvar was intended to be used primarily for document storage, copying microfilm or microfiche.