Information Technology [3 Mark Questions]

Various components of multimedia are described as follows:

• Text It is the most widely used and flexible means of representing information on screen and conveying ideas. It is not always a good idea to replace text with pictures or sounds, so designer should consider how to present text in an acceptable way and supplementing it with other media.
• Graphics Today visualisation has become an important part of the communication process and graphical images can be used to add emphasis, direct attention, illustrate concepts and provide a background for the content.
• Audio Audio is a very important element of multimedia application as it can enhance your multimedia application a number of ways.
  e.g. in delivering lectures over the Web music used to add interest and emotion to a presentation.
• Video Video provides a powerful impact in a multimedia program. In multimedia applications, now-a-days the digital video is becoming very much popular. These video clips can be edited easily and can be stored like any other computer file.
• Animation Animation is a process of making a static image look like it is moving. In multimedia, now-a-days animation is being used as 2-D animation and 3-D animation.

Linear and non-linear multimedia are two different categories that are applicable to the world of multimedia. The main difference is that linear multimedia does not feature any sort of navigational abilities.
Differences between linear and non-linear multimedia are:

Linear Multimedia	Non-Linear Multimedia
The linear multimedia will go from the start all the way through the end point without any variation.	Non-linear multimedia does not follow the one-way structure and allow free movement around all aspects of the multimedia in any order.
The user has no control over the sequence of events.	The user can control the progress and sequence of multimedia.
It is not interactive.	It is interactive.
e.g. A movie, Documentary	e.g. Game, E-Book.

Differences between data and information are as follows:

Data	Information
Data is used as input for the computer science.	Information is the output of data.
It is unprocessed facts or figures.	It is processed data.
It does not depend on information.	It depends on data.
It is not specific.	It is specific.
It does not carry a meaning.	It must carry a logical meaning.
It is the raw material.	It is the product.
e.g. each student’s height is one piece of data.	e.g. the average height of the class or the student is the information that can be concluded from the given data.