Display PostScript: Difference between revisions

Revision as of 02:33, 26 May 2025

Revision as of 23:14, 24 June 2025

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'''Display PostScript''' (or '''DPS''') is a [[2D computer graphics|2D graphics engine]] system for computers that uses the [[PostScript]] (PS) imaging model and language to generate on-screen graphics. PS was originally developed for [[computer printing]], to which DPS adds a number of features intended to ease working with [[bitmap]]ped displays and improve performance of some common tasks.

Early versions of PostScript display systems were developed at [[Adobe Systems]]. During development of the [[NeXT]] computers, NeXT and Adobe collaborated to produce the official DPS system, which was released in 1987. NeXT used DPS throughout its history, while versions from Adobe were popular on Unix workstations for a time during the 1980s and 1990s. The [[SunOS]] [[NeWS]] window system used DPS from the end of the 1980s into the 1990s.

== Design ==

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[[Digital Equipment Corporation]] in early 1988 licensed Display PostScript for [[DECwindows]]. Adobe said that it hoped that [[IBM]] and [[Microsoft]], for [[OS/2]] [[Presentation Manager]], and [[Apple Computer]] would also use the technology.<ref name="lach19880118">{{Cite magazine |last=Lach |first=Eric |date=18 January 1988 |title=Adobe Urges Apple, IBM To use Display PostScript |url=https://books.google.com/books?id=Dz8EAAAAMBAJ&pg=PA5#v=onepage&q&f=false |access-date=2025-05-25 |magazine=[[InfoWorld]] |page=5 |volume=10 |issue=3}}</ref>

In November 1993 Sun Microsystems shipped [[OpenWindows]] 3.3, which dropped the support for [[NeWS]] and its non-standard extensions to PostScript, replacing it with DPS.

== Modern derivatives ==

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== See also ==

* [[NeWS]], a similar conceptwindow system that used PSthe forPostScript displaygraphic model, but includedwith aextensions completefor windowingconcurrency, systemevents and OOP

* [[PostScript Standard Encoding]] (PostScript character set)

* [[NeXT character set]]

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* [https://web.archive.org/web/20060603154639/http://partners.adobe.com/public/developer/en/ps/psrefman.pdf PostScript Language Reference, Second Edition]

* [https://web.archive.org/web/20080515120658/http://partners.adobe.com/public/developer/ps/sdk/index_archive.html#dps Display PostScript reference documents]

* [https://www.donhopkins.com/home/archive/NeWS/leffler.text.txt Comparison between Display PostScript and NeWS]

{{XWinSys}}