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 word  multimedia consists of twowords "multi" and "media" which means that multipel forms of media are combined to gether and provide services like storage, communication. presentation and Input/Output interactions of text, video, image, graphics and audio.

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

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

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.

(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.

(i) A hypertext is a system which consists of nodes, the text and the links between the nodes, which defines the paths the user; need to follow for the text access in non-sequential ways.
(ii) The author of the working system created this structure. The user is permitted to define their own paths in more sophisticated hypertext systems.
(iii) The user is provided with the flexibility and choice to navigate in hypertext.

Team comprises of members playing various roles and responsibilities like Script Writer. Production Manager, Content Specialist, Editor, Graphics Architect, Multimedia Architect, Audio and Video specialist, Computer Programmer and Web Master.

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.

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.

1. Animation is the process of displaying images with continuous movement.
2. In animation, the screen object is a vector image in animation.
3. Using numerical transformations the movement of that image along its path is calculated for their defining coordinates.
4. The least frame rate of atleast 16 frame/sec gives the impression of smoothness and for natural looking it should be atleast 25 frame/sec.
5.  Animations may be in two or three dimensional.
6. The two dimensional animation, bring an image alive, that occur on the flat X and Y axis of the screen, while in three dimensional animation it occurs along the three axis X, Y and Z.
7. The two basic types of animations are (1) Path animation and (2) Frame animation.
(1) Path Animation
It involves moving an object on a screen that has a constant background.
E.g. A cartoon character may move across the screen regardless of any change in the background or the character.
(2) Frame Animation
In frame animations, multiple objects are allowed to travel simultaneously and the background also changes.

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.