P
PDF
Stands for Portable Document Format. Created by Adobe Systems
in its software program Adobe Acrobat as a universal browser. Files
can be downloaded via the web and viewed page by page, provided
the user is computer has installed the necessary plug-in which
can be downloaded from Adobe's own web site.
PHP
Abbreviation for Hypertext Pre-Processor.
Plug-In
A software extension that provides added capabilities to the browser,
for purposes such as viewing, hearing, or saving specially formatted
files. Most plug-ins are available via the creator's web page for
downloading.
PNG
Stands for Portable Network Graphics format,
and is generally pronounced "ping." PNG is used for
lossless compression and displaying images on the web. The advantages
of PNG is that it supports images with millions of colors and
produces background transparency without jagged edges. The disadvantages
are that PNG images will not show up on older browsers, and still
can be comparatively larger in file size than GIFs.
PPI
Stands for pixels per inch. PPI specifies the resolution of an
input device, such as a scanner, digital camera, or monitor. Web
page resolution ranges from 72-96 pixels per inch. (For information
on output device measurements see dpi.)
Post
A post is a single message sent to a newsgroup or message board.
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