Introduction to Multimedia I

Multimedia

Multi = many, multiple

Media = An intervening substance through which something is transmitted or carried on

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MultimediaDefinition

Multimedia refers to technologies and applications that integrate different types of media, such as text, sound, video, computer graphic, animation

Benefits:It makes things interesting and entertaining to

the users, i.e. Enclocypedia Britannica, Encarta, VR (Virtual Reality)

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Multimedia Component

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Multimedia

Picture

Sound

InteractionVideo

Text

TextContent descriptions

Graphical Text

Common file format:.pdf (portable document format).doc (MS-Word document).rtf (rich text format).htm or .html (hypertext markup language or

web files)

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PicturesStill Images (Still Pictures) or Graphics

including charts, photos, drawings, buttons, etc.

Common file formats:.gif (graphics interchange format).jpg (jpeg – joint photographic experts group).bmp (bitmat picture).tif (tagged image file)

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PicturesAnimations are made up of a series of

independent pictures put together in sequence to look like moving pictures

Common file formats:.gif for animated gifts.swf (shockwave flash) for Flash files

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SoundDigital Audio such as songs, movie

soundtracks and speeches

Synthesizer Audio (MIDI)

Common file formats:.wav (Windows wave audio format).ra (RealAudio file).mp3 (MPEG-1, Audio layer 3).mid (MIDI – Musical Instrument Digital

Interface)

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VideoVideo refers to recording, editing and

displaying moving images

Common file formats:.avi (audio video interleave).mov (QuickTime movie).wmv (Windows media video).mpg (MPEG – moving picture experts group)

MPEG-1 (VCD), MPEG-2 (DVD), MPEG-4

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Interaction

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see,hear

Interactive

Multimedia System

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Digital DevicesDigital Devices

Analog DevicesAnalog Devices

Digital DevicesDigital Devices

Analog DevicesAnalog Devices

Input Devices Output Devices

Multimedia Input DevicesDigital Devices

KeyboardMouseScannerCD/DVDDigital CameraDigital Video Camera (DV)MIDI (Musical Instrument Digital Interface)Magnetic Storage Devices (HardDisk,

FloppyDisk)Touch-Screen Monitor

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Multimedia Input DevicesAnalog Devices

MicrophoneVideo CameraCassette TapeVideo Tape (VHS)

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Multimedia Output DevicesDigital Devices

Digital Monitor (CRT, LCD, LED)PrinterMagnetic Storage Devices (HardDisk, Floppy

Disk)CD-R, CD-RW (DVD-R, DVD-RW)CD AudioVCD (Video Disc), DVD, Blu-rayMIDI (Musical Instrument Digital Interface)

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Multimedia Output DevicesAnalog Devices

SpeakerAnalog Monitor (TV)Video Recorder (PAL, NTSC, SECAM)

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Multimedia ComputerMicrocomputerMonitorVideo BoardCD-ROM (DVD-ROM)Sound BoardMicrophoneExternal SpeakerApplication SoftwareMouse , Keyboard

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