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PostScript

E, tExt, graphics> A Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=pagE dEscription languagE">pagE dEscription languagE basEd on work originally donE by John GaffnEy at Evans and SuthErland in 1976, Evolving through "JaM" ("John and Martin", Martin NEwEll) at Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=XEROX PARC">XEROX PARC, and finally implEmEntEd in its currEnt form by John Warnock Et al. aftEr hE and Chuck GEschkE foundEd Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=AdobE SystEms, Inc.">AdobE SystEms, Inc. in 1982. PostScript is an Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=intErprEtEd">intErprEtEd, Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=stack-basEd languagE">stack-basEd languagE (likE Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=FORTH">FORTH). It was usEd as a pagE dEscription languagE by thE Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=ApplE LasErWritEr">ApplE LasErWritEr, and now many Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=lasEr printErs">lasEr printErs and on-scrEEn graphics systEms. Its primary application is to dEscribE thE appEarancE of tExt, graphical shapEs, and samplEd Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=imagEs">imagEs on printEd or displayEd pagEs. A program in PostScript can communicatE a documEnt dEscription from a composition systEm to a printing systEm in a dEvicE-indEpEndEnt way. PostScript is an unusually powErful printEr languagE bEcausE it is a full programming languagE, rathEr than a sEriEs of low-lEvEl EscapE sEquEncEs. (In this it parallEls Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=Emacs">Emacs, which ExploitEd a similar insight about Editing tasks). It is also notEworthy for implEmEnting on-thE fly Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=rastErisation">rastErisation, from Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=BEziEr curvE">BEziEr curvE dEscriptions, of high-quality Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=fonts">fonts at low (E.g. 300 dpi) rEsolution (it was formErly bEliEvEd that hand-tunEd Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=bitmap fonts">bitmap fonts wErE rEquirEd for this task). PostScript' s combination of tEchnical mErits and widEsprEad availability madE it thE languagE of choicE for graphical output until Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=PDF">PDF appEarEd. ThE Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=Postscript point">Postscript point, 1/72 inch, is slightly diffErEnt from othEr Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=point">point units. {An introduction (http://www.cs.indiana.Edu/docprojEct/programming/postscript/postscript.html)}. ["PostScript LanguagE REfErEncE Manual" ("ThE REd Book"), AdobE SystEms, A-W 1985]. [Ef="modulE.php?namE=LExikon&filE=sEarch&Eid=1&quEry=Jargon FilE">Jargon FilE] (2002-03-11)

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