1Give examples of multimedia 2What are HTML CSS and JavaScri

1.Give examples of multimedia.

2.What are HTML, CSS and JavaScript used for?

Solution

Major Areas of Multimedia Use:

Education and Training

In an educational multimedia system, the participants are the students and the teachers. The use of multimedia in

this context is to inform and educate. Two major requirements of educational multimedia packages are good

navigational options and a sufficient breadth and depth of information. The keyboard (for keyword searches) and the

mouse (with hypermedia links) are usually used for navigation. The system will most probable to have all or most of

the data types (text, hypertext, numbers, audio, images, animations and video) along with different hardware and

software devices.Text is the most common data type.

Leisure and Entertainment

The participants in this type of system will be ranging from a variety of people from all ages. Often, their knowledge

and skill about information technology are relatively low. The most common form of leisure and entertainment

multimedia is the interactive computer game. The games are typically stored on CD-ROM (and increasingly on

DVD) due to the amount of data and have. The average gamer (player) is only keen in audio, hypermedia, video and

animated data types. User interaction with the system will most likely be through a mouse, trackball, or joystick.

The keyboard is rarely used. In multimedia design for leisure and entertainment, it is important to note that it

includes features such as fast action and allows the ability of the user to explore and discovery. A wide range of

multimedia technology (high resolution VDU, audio speakers, CD/DVD drive, etc.) is likely to be present. The

Internet are now widely used as a source to locate support devices and software for their system or leisure

activities. These can be sharing MP3 files, downloading embroidery patterns, etc. These activities, however, have

generated controversy over copyright issues.

Information Provision

This type of multimedia are usually aimed at quickly providing very basic information. The participants for this

system are similar to leisure and entertainment systems. Their information technology skills are frequently low as

well as in leisure and entertainment. The users in this system only has an objective of locating and displaying

information for a specified topic.

Examples would include information kiosks in tourist centres, interactive directories in retail stores and shopping

centres, and catalogue systems in libraries. The navigation options will often be simple with little depth.

With an information kiosk, the interactive devices will usually be touch-sensitive screens or a trackball built into the

system case. The publicity in the context of this system means that the use of keyboard or mouse is unlikely, due

to no supervision. Because they are likely to be in the noisy environment of a shopping centre or near a busy

street, audio may not be part of the presentation.

Simulations and Virtual Reality (VR)

Simulation and VR systems are designed to duplicate real situations. These systems are used among the most

sophisticated and expensive of computer-based systems. The purpose of a simulation is usually to create a

situation with sufficient authenticity and realism that user can gain valuable training and experience from using the

system. VR systems conducts this as a more developed simulation where the users are convinced that they are

part of a real situation. The users are often specialists (ignoring entertainment-based systems) using the

technology to further their knowledge and/or training.

For example, the inside of a flight simulator will resemble a real aircraft cockpit and not a computer terminal. VR

systems can be used to design new drugs and chemical products. In simulating the movement of atoms and

molecules, motion or position sensitive gloves are used. A 3D video headset allows researchers to see these

simulated reactions and chemical structures.

The making of these systems are expensive because of the degree of realism they require. A flight simulator for a

modern commercial passenger jet will cost millions of dollars.

Answer for Question2:

The three main technologies used to create web pages (HTML, CSS and JavaScript) each do different special jobs.

HTML: It stands for HyperText Markup Language. It should be used only for structuring content

CSS: It stands for Cascading Style Sheets. It should be used for applying all visual styles.

Java Script: It should be used for (almost) all interactive functionality, and should always be referenced in separate

files, never written into HTML.

Web page you see in your browser may be a combination of structure, style and interactivity. These jobs are

undertaken by these three technologies i.e., HTML, CSS and Java Script