presentation on information technology

8/8/2019 Presentation on Information technology

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I T PRESENTATION

SUBMITTED TO:-Miss. Preeti

SUBMITTED BY:-

Nitish Kumar Singh


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MULTIMEDIA

y Multimedia is the field concerned with the computer-controlled integrationof text, graphics, drawings, still and moving images (Video), animation, audio,and any other media where every type of information can be represented,stored, transmitted and processed digitally.

y A MULTIMEDIA APPLICATION

It is an Application which uses a collection of multiple media sources e.g. text,graphics, images, sound/audio, animation and/or video.

There are two types of multimedia:-

Unimedium presentation

Multimedia presentation


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COMPONENTS OF MULTIMEDIAMultimedia consists of :-

y Text (alphanumeric characters)

y Graphics (line drawings and images)yAnimation (moving images)

yAudio (sound)

yVideo (video graphed real life events)


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COMPONENTS OF MULTIMEDIAy TEXT

y In information technology, text is a human-readable sequence of character sand the words they form that can be encoded into computer-readable formats

such as ASCII .y Text is usually distinguished from non-character encoded data, such as graphic

images in the form of bitmap s and program code.

y HARDWARE REQUIREMENTS FOR TEXT

y To input and output data and information of text form needs followinghardwares:-

y Keyboards (use to input data by typing instructions).

y OCRs (used to put the printed form of text to computers).

y Monitors (generally used to display text and other information).

y Printers (used to get output by printing hard copy of the text).


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TEXTy SOFTWARE REQUIREMENT FOR TEXT

y Software is also required and desirable in a multimedia computer system forbetter presentation and use of textual information

y These requirements includes:-

y Text Editing(To generate , layout and edit a text document properly)MSWORD,NOTEPAD and WORDPAD etc.

y Text Style( includes making the text more effective and more presentable byediting and formatting. Can change the font size, fontstyle(bold,italic,underline,font color etc.)

y Text Search (refers to a technique for searching a computer-stored document

or database .Most Web sites and application programs (such as wordprocessing software) provide full text search capabilities. )

y Hypertext (is text, displayed on a computer, with references (hyperlinks) toother text that the reader can immediately follow, usually by a mouse click orkey press sequence).


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GRAPHICS

y Computer graphics deals with generation, representation, manipulation, anddisplay of pictures with a computer.

y . Graphics is an important component of multimedia because a picture is apowerful way to illustrate information.

y GRAPHICS TYPESy LINE DRAWINGS: These are drawings and illustrations in the form of 2D and

3D pictures, simple objects like lines, circles, arcs etc.

y 2. IMAGES: -

y These are pictures and photographs composed of collection of pixels.

y HARDWARE REQUIREMENTS OF GRAPHICS

y A locating device(MOUSE and JOYSTICKS)

y Scanners (are used commonly as input devices for capturing photographs anddrawing as digital images for cognitive graphics applications).

y Laser printers( used commonly to output graphics in hard copy from).


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GRAPHICSy SOFTWARE REQUIREMENTS OF GRAPHICS

y Some graphics processing capabilities are highly desirable for betterpresentation an use of graphics applications.

y

DRAWINGAND PAINTING SOFTWARESy These softwares includes MS PAINT and other painting softwares

y CLIP ART

y Clip art is a library of commonly used graphics images or objects

y GRAPHICS IMPORTINGapplication software can import graphics in somestandard formats. Common graphic formats supported by such softwareinclude .BMP, .GIF, and .PCX.

y


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ANIMATIONy Computer animation deals with generation, sequencing,

and display (at a specified rate) of a set of images (calledframes) to create an effect of visual change or motion,

similar to a movie film (video). Animation is also usedcommonly in those areas where videography is not possibleor animation can illustrate these concepts better than avideo. For example- Flow of blood in our arteries and veins

y HARDWARE REQUIREMENTS

y

Image generation tools (scanners)y digital camera, and video capture boardsome standard video source

like video camera or videocassette recorder These are used togenerate images for use in animation


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ANIMATIONy SOFTWARE REQUIREMENTS

y Animation-creationsoftware: It enables users to create animationsequences from scratch by using a mouse and various simple objects

.exampley Maya

y Screen-capture software:-It is used to take a snapshot of a computerscreen display and capture it as a graphic image that can be used in ananimation clip.

y Transition effects:-Animation can be made more interesting withtransition effects such as fade-in and fade-out, layering, zooming, androtation of objects.


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AUDIO

y Computer audio deals with synthesizing, recording andplayback of audio or sound with a computer.

y HARDWARE REQUIREMENT

y Computer audio generally involves following hardwaredevices

y A soundboard equipped with A/D and D/A converters.y Sound editors are used to cut and paste sound sequences,

to add special effects, and to create new sound sequences

from existing sound sequences.y Audio mixers are used to combine multiple channels of

sound with controls like synchronization points.y


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AUDIO

y SOFTWARE REQUIREMENTS

yAudio clips: It is a library of audio clips (pre-made

sound effects, music) from which one can select anddirectly import an audio clip, and use it in amultimedia application.

y Text to speech conversation software: It is used to

convert written text into corresponding sound.


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VIDEO Like animation, computer video deals with

recording and display of a sequence of images at areasonable speed to create an impression of imp

y HARDWARE REQUIREMENTS:-

y

yA video camera is the most commonly used inputdevice for capturing video data.

yA video monitor is the most commonly used outputdevice for displaying video data.

rovement


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VIDEOy SOFTWARE REQUIRMENTS

y VIDEO CLIPS: - It is the library of video clips. One can select and import avideo clip directly from this library for use in a multimedia application.

y

RECORDINGAND PLAYBACK CAPABILITY:- It enables users to controlrecording and display of a video sequence. For example, it provides options topause and replay a video sequence.


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THANK YOU


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QUESTIONS

presentation on information technology

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