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The Premier Digital Glossary

(December 1999) posted on Thu Dec 16, 1999

A comprehensive digital dictionary with terms from sign and related industries

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File format: A file format is indicated by a period followed by a three- or four-letter suffix, for example, .COM. The suffix indicates what type of file it is: a document, spreadsheet, drawing, Internet web page, etc. By knowing the properties of the various types of file formats, users can determine which files to open and read, which to import into other files and which offer the best options for scanning.

FM (frequency-modulated) screening: A dithering method that uses uniform dot sizes and varies the distance between them. This method is different from conventional halftone screening, which aligns dots of varying sizes on a regular grid.

Front end: Front end refers to all the hardware and software &emdash; the scanner and computer workstation up to, but not including, the output device.

Gradation: The transition between colors or shades. Gradation occurs by mixing percentages of dominant and secondary color and then altering those colors to bring about a change.

Grand format: Super-large digital-print machines. Their printing process is usually driven by air, but recent machines may piezo print directly on a substrate.

Hard drive: The unremovable part of a computer that houses programs and data.

Hexachrome: A color-matching system that allows for the combination of six colors in order to create a larger gamut of reproducible color.

Hue: A specific shade or tint of a given color. Hue is the measurement of the wavelength of light.

Inkjet, bubblejet: Specifically, Bubblejet is a tradename for a Canon desktop inkjet printer. Bubblejet is also a name used to describe "thermal"-type inkjets.

Inkjet, phase change: This type of inkjet technology uses solid wax inserts instead of traditional inks. The wax is melted and deposited onto the substrate through the printhead.

Inkjet printer: A type of printer that sprays tiny streams of quick-drying ink onto the paper. An inkjet printer produces high-quality printing like that of a laser printer.

Interface: The communication that takes place between a system's hardware and software components.

Internet: A worldwide telephone hook-up between participating computers.

Interpolation: Interpolation is the process of injecting additional dots to digitally enlarge the original.

Large format: Large format generally refers to a manufacturer's definition of its product.

LPI (lines per inch): A traditional halftone screen measurement that refers to the number of lines of dots per inch.

LUT (look-up table): The storage space for pre-set measurements and adjustments for different media, file types, printers, etc.


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