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PostScript Introduction
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"PostScript Introduction
Background
In this section of the course we will give you an overview of the PostScript page description language, where it came from, and the problem that it solves.
History
Page Description Languages
Capabilities
Current implementations
Applications
History of PostScript
PostScript is a product of Adobe Systems, Inc. Adobe Systems was formed in 1982 by Dr. John E. Warnock and Dr. Charles M. Geschke.
Many of the concepts originated in 1976 at Evans & Sutherland as pat of the "Design System".
in 1978, many of the page description concepts were firmed up and re-implemented at Xerox PARC. This evolved into InterPress.
In 1982 the third implementation of these concepts became PostScript.
In Xerox's InterPress, the emphasis is on speed. If Xerox sells a customer a 120 page per minute printer, Xerox wants the printer to spit out 120 pages per minute.
PostScript allows a page to be arbitraily complicated. A Page may be so complicated that the printer must pause the printing process while it interperts the PostScript commands.
The original releaqse of PostScript is now called "Level 1". Many additions and enhancements have been made which bring the language to "Level 2". Except where noted, all of the material in this course is applicable to both Level 1 and Level 2.
History of Adobe
Adobe Systems formed was in 1982 with $2.5 million in initial backing.
It went public in August 1986.
Adobe has been profitable since day one.
Adobe does not manufacturer printers. It sesigns controllers and software and then licenses manufacturing rights to OEMs.
Originally, the only items Adobe sold to the general public were fonts.
Adobe has branched into the software market, developing some software internally, and purchasing some software (and software companies) for others.
PhotoShop - Image manip"
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