The
MPEG standards are an evolving
set of standards for video and audio
compression and for multimedia delivery
developed by the Moving Picture Experts
Group. MPEG-1 was designed for coding
progressive video at a transmission rate
of about 1.5 million bits per second. It
was designed specifically for
Video-CD and CD-I media.
MPEG-1 audio layer-3 known by the
millions of people that listen to them
as MP3 has also evolved from
early MPEG work.
It is
used primarily for compressing audio.
JPEG stands for Joint Photographic
Experts Group, a group of experts that
develops and maintains standards for a
suite of
compression
algorithms for computer image files.
JPEG has become a term for any
graphic image file produced by using a
JPEG standard. When you create a JPEG or
convert an image from another format to
a JPEG, you are asked to specify the
quality of image you want. Since the
highest quality results in the largest
file, you can make a trade-off between
image quality and file size.
Together with the Graphic Interchange
Format (GIF) and Portable Network
Graphics (PNG) file formats, the JPEG is
one of the image file formats supported
on the World Wide Web, usually with the
file suffix of ".jpg".
Q. What is Rich Text Formula
(RTF)? When do you use it?
A.
Rich Text Format (RTF) is a file format
that lets you exchange text files
between different word processors in
different operating systems. For
example, you can create a file using
Microsoft Word in Windows XP, save it as
an RTF file (it will have a ".rtf" file
name suffix), and send it to someone who
uses WordPerfect 10 on Windows 2000 and
they will be able to open the file and
read it. Likewise, this same file could
be opened and read on a MAC using most
any Word Processor. In most current word
processors, the RTF capability will be
built into the word processor.
