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Skill Level: Novice
Glossary: 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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