資料來源 : pyDict
附言,後記
資料來源 : Webster's Revised Unabridged Dictionary (1913)
Postscript \Post"script\, n. [L. postscriptus, (assumed) p. p.
of postscribere to write after; post after + scribere to
write: cf. F. postscriptum. See {Post-}, and {Scribe}.]
A paragraph added to a letter after it is concluded and
signed by the writer; an addition made to a book or
composition after the main body of the work has been
finished, containing something omitted, or something new
occurring to the writer. [Abbrev. P. S.]
資料來源 : WordNet®
postscript
n 1: a note appended to a letter after the signature [syn: {PS}]
2: textual matter that is added onto a publication; usually at
the end [syn: {addendum}, {supplement}]
資料來源 : Free On-Line Dictionary of Computing
PostScript
A {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 {XEROX PARC}, and finally implemented in its
current form by John Warnock et al. after he and Chuck Geschke
founded {Adobe Systems, Inc.} in 1982.
PostScript is an {interpreted}, {stack-based language} (like
{FORTH}). It was used as a page description language by the
{Apple LaserWriter}, and now many {laser printers} and
on-screen graphics systems. Its primary application is to
describe the appearance of text, graphical shapes, and sampled
{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 {Emacs},
which exploited a similar insight about editing tasks). It is
also noteworthy for implementing on-the fly {rasterisation},
from {Bezier curve} descriptions, of high-quality {fonts} at
low (e.g. 300 dpi) resolution (it was formerly believed that
hand-tuned {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 {PDF} appeared.
The {Postscript point}, 1/72 inch, is slightly different from
other {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].
[{Jargon File}]
(2002-03-11)