5.Describe Multimediacontents

Multimedia is the term used to describe two or more types of media combined into a single package—usually denoting a combination of some or all of the following: video, sound, animation, text, and pictures.

And with the advent of multimedia, the computer has evolved into a distinctive medium that is uniquely capable of juxtaposing text, images, audio, and video.

Multimedia is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content. Multimedia contrasts with media that use only rudimentary computer displays such as text-only or traditional forms of printed or hand-produced material.

Multimedia is content that uses a combination of different content forms such as text, audio, images, animations, video and interactive content. Multimedia contrasts with media that use only rudimentary computer displays such as text-only or traditional forms of printed or hand-produced material.

Text.Text in multimedia systems can express specific information, or it can act as reinforcement for information contained in other media items.

Images. Digital images can display application content or can alternatively form part of a user interface. JPEG and PNG image formats often appear on websites, as the formats allow developers to minimize on file size while maximizing on picture quality.

Audio.Audio files appear as part of application content and also to aid interaction. Audio formats include MP3, WMA, Wave, MIDI and RealAudio. Developers usually use a compressed format to minimize on download times. Web services can also stream audio, so that users can begin playback before the entire file is downloaded.

Video.Digital video appears in many multimedia applications, particularly on the Web. Common digital video formats include Flash, MPEG, AVI, WMV and QuickTime. Most digital video requires use of browser plug-ins to play within Web pages, but in many cases the user's browser will already have the required resources installed.

Animation.Animated components are common within both Web and desktop multimedia applications. Animations can also include interactive effects, allowing users to engage with the animation action using their mouse and keyboard. The most common tool for creating animations on the Web is Adobe Flash, which also facilitates desktop applications. Using Flash, developers can author FLV files, exporting them as SWF movies for deployment to users. Flash also uses ActionScript code to achieve animated and interactive effects.

6. Describe Archivingofdata

Archiving of data the process that reduce size of file. Compression of files. Archive programs are: WinZip, Winrar.

These computerprograms thatcombine a numberof files togetherintoone archivefile, or a seriesofarchivefiles, foreasiertransportationorstorage. Filearchiversmayemploy losslessdatacompression intheir archiveformats toreducethesizeofthearchive.

7.Givedefinitionto Userinterface

User interface is visual part of computer application or operating system through which a user interacts with a computer or a software. It determines how commands are given to the computer or the program and how information is displayed on the screen. Two main types of user interfaces are :Command Line Interface (CLI) and Graphical User Interface (GUI)

Command Line Interface allows the user to interact directly with the computer system by typing single commands into the interface and receiving a reply in the same way.

Command line interface (CLI) is a text-based interface. After receiving the command, the CLI processes it accordingly and shows the output/result on the same screen; command line interpreter is used for this purpose. Its working mechanism is very easy, but it is not user friendly. CLI is an older method for interacting with applications and operating systems and is used to perform specific tasks required by users.

Nearly all software programs have a graphical user interface, or GUI. This means the program includes graphical controls, which the user can select using a mouse or keyboard. A typical GUI of a software program includes a menu bar, toolbar, windows, buttons, and other controls. The Macintosh and Windows operating systems have different user interfaces, but they share many of the same elements, such as a desktop, windows, icons, etc. These common elements make it possible for people to use either operating system without having to completely relearn the interface.