(i) MPEG is a standard for generating digital video and audio compression under the International Standards Organization (ISO) by the group of people.
(ii) The group has developed MPEG-1, the standard on which Video CD and MP3 are based, MPEG-2
(iii) The standard that supports products as Digital Television set top boxes and DVD, MPEG - 4, the standard for multimedia and mobile web.

It is any sort of production that user combination of text, audio and graphics to tell about something.
Eg. Educational, Sale of product etc.

Animation is the process of displaying still images with continuous movement.
Features:
(i) Screen object is a vector image.
(ii) Animation tools are very powerful and effective.
(iii) Frame rate: 16 frames/sec for smoothness impression, 25 frames/sec for natural looking.

Text component in multimedia can be classified as
(i) Static text. 
(ii) Hypertext.

Multimedia allows the users to combine and change data from various sources like image, text, graphics,video and audio to a single platform.
Features:
(i) It has become the latest enriching experience in the field of information sector.
(ii) It has brought a lot of changes to computing, entertainment and education.

1. Animations may be in two (or) three dimensional. Two dimensional animation, bring an image alive, that occur on the flat X and Y axis of the screen and three dimensional animations occurs along X, Y and Z axis.
2. Two basic types of animations are Path animation and Frame animation.
3. Animation industry mostly used all fields like Education, Entertainment, Advertisement in Cartoon Films, Business systems and etc.

Animation is the process of displaying still images so quickly so that they give the impression of continuous movement.
Features:
(i) Animation tools are very powerful and effective.
(ii) Frame rate of 16 frames/sec gives the impression of smoothness.
(iii) For natural looking, frames rate should be atleast 25 frames/sec.
There are two basic techniques of animations:
(a) Path animation
(b) Frame animation.
(a) Path Animation:
Path animation involves moving an object on a screen that has a constant background.
(b) Frame Animation:
In frame animations, multiple objects are allowed to travel simultaneously and the background or the objects also changes.

They are explained below :
i) Text :
1. Text is the basic components of multimedia and most common ways of communicating information to other person.
2. Text component is classified into two such as (a) Static text (b) Hypertext.
ii) Images:
Images in multimedia are generated in two ways.
a) Raster or Bitmap Images
b) Vector Images.
iii) Animation :
Animation is the process of displaying still images with continuous movement. 
The two basic types of animations are (1) Path animation (2) Frame animation.
iv) Sound :
Sound is a meaningful speech in any language and providing the pleasure of music, special effects and so on.
v) Video :
1. Video is defined as the display of recorded event, scene, etc.
2. The video can be categorized in two types as (1) Analog video and (2) Digital video.

Audio file formats are 
(i) WAV - Waveform Audio File Format.
(ii) MP3 - MPEG Layer-3 Format
(iii) OGG
(iv) AIFF - Audio Interchange File Format
(v) WMA - Windows Media Audio
(vi) RA - Real Audio Format

File Formats for Multimedia:
                      The following is an outline of current file formats used for the production and delivery of multimedia data.
(1) Text Formats:
   RTF:
   Rich Text Format is the primary file format introduced in 1987 by Microsoft with the specification of their published products and for cross-platform documents interchange.



Plain text:
(i) Plain text files can be opened, read, and edited with most text editors.
(ii) The commonly used text editors are Notepad (Windows), Gedit or nano (Unix, Linux), TextEdit (Mac OS X) and so on.
(2) Image Formats:
TIFF (Tagged Image File Format):
(i) This format is common in desktop publishing world (high quality output), and is supported by almost all software packages.
(ii) Recent versions of TIFF allows image compression, and the format is comfortable for moving large files between computers.
DIB (Device Independent Bitmap):
A device independent bitmap contains a colour table. The colour describes how pixel values corresponds to RGB colour values, which describes colors that are produced by emitting light.
GIF (Graphics Interchange Format):
(i) GIF is a compressed image format. Most of the computer color images and backgrounds are GIF files.
(ii) This file format is best suitable for graphics that uses only limited colors, and it is the most popular format used for online color photos.
TGA (Tagra):
It is the first popular format for high-resolution images. TGA files are common in animation video industry.
PNG (Portable Network Graphics):
(i) PNG is an extensible file format for the less loss, portable and well compressed storage of raster images.
(ii) PNG acts as replacement for GIF and also replaces multiple common uses of TIFE
(3) Digital Audio File Formats:
WAV (Waveform Audio File Format)
(i) WAV is the most popular audio file format in windows for storing uncompressed sound files.
(ii) In order to attain the reduced hile size it can also be converted to other file formats like MP3.
MP3 (MPEG Layer-3 Format):
(i) MPEG Layer-3 format is the most popular format for storing and downloading music.
(ii) The MP3 files are roughly compressed to one-tenth the size of an equivalent WAV file.
(4) Digital Video File Formats:
AVI (Audio/Video Interleave):
AVI is the video file format for Windows Here sound and picture elements are stored in alternate interleaved chunks in the file.
MPEG (Moving Picture Experts Group):
(i) MPEG is a standard for generating digital video and audio compression under the International Standards Organization (ISO) by the group of people.
(ii) Simply MPEG is the standards for digital video and audio compression.

Multimedia is the presentation of computer controlled and interactive information using the combination of video, sound, text, pictures and animations.
Steps in Multimedia Production :
i) Conceptual Analysis and Planning
ii) Project Design
iii) Pre Production
iv) Budgeting
v) Multimedia Production Team
vi) Hardware/Software Selection
vii) Defining the Content
viii) Preparing the Structure.
ix) Production
x) Testing
xi) Documentation
xii) Delivering the Multimedia Product
(i) Conceptual analysis identifies a appropriate theme, budget and content availability on that selected projects.
(ii) Project design phase contribute the series of actions performed to implement an objective.
(iii) Based on the planning and design, Budgeting, Hardware / Software selection and the content are necessary to develop the project.
(iv) Production team responsible for script writing, editing, graphics, etc.
(v) Complete the testing of the pilot product before the mass production.
(vi) User documentation is a mandatory feature for all multimedia projects.
(vii) Finally, multimedia application is delivered in more effective way by the integration of two mediams CD-ROM/DVD and Internet.

(d) Text Edit

(b) RTF

(d) Pen drive

(b) Text