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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. It has become increasingly prevalent ...
Microform. Digital scanning of microfilm. A microform is a scaled-down reproduction of a document, typically either photographic film or paper, made for the purposes of transmission, storage, reading, and printing. Microform images are commonly reduced to about 4% or 1⁄25 of the original document size. For special purposes, greater optical ...
Microfilmer. 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.
These facilities are still considered branches of the Salt Lake City central library and often have book collections in the thousands, microfilm and microfiches in the tens of thousands, dozens of Internet-connected computers, microfilm and microfiche readers, and some digital scanners. All have dedicated servers with DSL, cable or T-1 Internet ...
Digital electronics is a field of electronics involving the study of digital signals and the engineering of devices that use or produce them. This is in contrast to analog electronics which work primarily with analog signals. Despite the name, digital electronics designs includes important analog design considerations.
Vannevar Bush. Memex [mem ory ex pansion] is a hypothetical electromechanical device for interacting with microform documents and described in Vannevar Bush 's 1945 article " As We May Think ". Bush envisioned the memex as a device in which individuals would compress and store all of their books, records, and communications, "mechanized so that ...
Document imaging. 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 ...
An aperture card is a type of punched card with a cut-out window into which a chip of microfilm is mounted. Such a card is used for archiving or for making multiple inexpensive copies of a document for ease of distribution. The card is typically punched with machine-readable metadata associated with the microfilm image, and printed across the ...