Computer Fundamentals

MultimediaMSCH 233

Lecture 10

Who Use Multimedia Applications:

Teachers: To make video projects or to teach subjects

Companies: To make Business Presentations Museums Banks Web designers Singers Movie maker. Etc.

Types of multimedia

AudioGraphicsVideo

Audio: Sound and Music

To listen to music and sounds you need a sound card build into your computer system.

Sound cards offer 2 capabilities:1. Built-in stereo synthesizer2. Musical Instrument Digital Interface (MIDI) which

allows electronic musical instrument to communicate with the computer

To listen to radio on the web you need a program called Real Player or Media Player installed into you computer system that use ‘Streaming’ technique which allows you to play an audio while it’s downloading

graphic

To store a graphic into your computer you can:

1. Use a digital camera and store the image in a memory card, then download it into you r computer

2. Use a Scanner to scan printed images

Once its in a digital format you can repair , and add effects to your image.

Video and Animation

Using a computer with video multimedia capability you can create, add effects, edit and save your own video in your PC, CD, DVD or tape.

To make a video you have to have a video camera to capture the move then transfer it into digital format to your PC.

Multimedia on the Web

Web Pages contains different multimedia elements, to identify the format or the type of the element an extension is added to the name of the file: Text: Most common formats are .txt , .doc, .pdf

and .htm (or .html) Graphics: Most common are.gif .jpg Sounds: .ram, .rm, .wav, .mp3 Video: .avi, .mov, .mpg Compressed files: .zip (Windows), .sit (Macintosh)