(i) Relatively small amount of data is required to represent the image and thereby only less memory is needed to store.
(ii) Compression techniques are used to reduce the file size of images that is useful for storing large number of images and speeding transmission for networked application.

Information's are available in digital formats that include digital books, scanned images, graphics and digitized audio-visual clips etc stored in Digital Multimedia Library

The team comprises of members playing various roles and responsibilities like Script writer, Production manager, Editor, Graphics Architect, Multimedia Architect and Web Master.

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.

Multimedia has five major components like text, images, sound, video and animation.

Multimedia conferencing or video conferencing is a system that performs face-to-face interaction samong participating users, located far from each other, as if they weresitting and discussing in a single room.

(i) Medical Students practices surgery methods via simulation prior to actual surgery.
(ii) Tiny digital cameras are inserted in human body and it displays the inner scene of the body. Like wise, the medical practioners were able to see the inner part without dissecting it.

(i) Multimedia plays a vital role in offering an excellent alternative method to traditional teching by allowing the students to explore and learn various concepts through animation.
(ii) Students, teachers and the parents enjoy this multimedia mode of learing and multimedia learning materials.
(iii) Many educators accept multimedia introduces new ways of thinking in the classroom.

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.

Various file formats used in multimedia are
(i) Text formats
(ii) Image formats
(iii) Digital Audio file formats and
(iv) Digital Video file formats.
(i) Text formats : Rich Text Formats and Plain Text Format are used in Text formats.
(ii) Image formats : TIFF, BMP, DIB, GIF, JPEG, TGA, PNG are image formats.
(iii) Digital Audio file formats : WAV, MP3, OGG, AIFF, WMA and RA are Digital Audio file formats.
(iv) Digital Video file formats : AVI, MPEG are digital video file formats.

Multimedia technologyis adopted by the libraries in various functions like multimedia kiosks, user orientation programs etc. Following is the brief account of multimedia technology applications in libraries.
1. Multimedia Kiosk
(i) Kiosk is a free-standing furnished equipped multimedia computer that allows users to retrieve information via a touch screen. It is commonly used in airports and other public locations to provide directions and few mandatory information's.
(ii) In an library, Kiosk is usually located nearthe entrance of the library, used for displaying announcements, reading lists, comments and suggestions from library users and other information's about operations and programs of the library.
2. Webcasting and Video Conferencing
(i) The live telecast of real time programs through internet is known as Webcasting.
(ii) Video conferencing isthe process of conducting conference between more than two participants at different sites by using computer networks to transmit audio and video data.
3. User Orientation Program
(i) The role of multimedia plays anvital role in training the librarians in schools, colleges and universities due to its interactivity. Hence, it is used in depth subject training to their faculties .
4. In-house Production of Multimedia Resources and E-publishing
(i) Many libraries produce multimedia resources in-house, to serve the parent organization.Introduction of CD/DVD and their writershas solved few of the problem of libraries in storing or achieving the materials.
(ii) Multimedia tools along with CD-writers is made possible to publish information from dlfferent sources in a most easy to use and acceptable form tolibrary users.
5. Digital Multimedia Libraries
(i) Information's are available indigital formats that include digital books, scann ed images, graphics and digitized audlo-visuat clips etc
(ii) Initially digital library projects were based only on textual data, later it was on all other media elements like images, audio and video recordings were also integrated under the collection of digital library.

(i) Business applications for multimedia include presentations, training, and internet protocols and soon.
(ii) The marketing and advertising agencies are using animation techniques for sales promotion.
(iii) Multimedia is used very commonly for building employee ID.
(iv) High resolution projectors are common for multimedia presentations on the road.
(v) Cell phones and personal digital assistants with Bluetooth and Wi-Fi communication technology makes multimedia communication for business more effiCiently.

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.