Video



Video is also a important component of multimedia because it is very useful for illustrating concepts that involves movement. Although, both animation and video deal with the display of a sequence of images to generate an effect of motion, video typically deals with recording of a real-life event produced by a device, such as a digital video recorder.


Hardware Requirement for Video:

The following hardware devices are generally required in a computer system capable of handling video:


1. A video camera is the most commonly used input device for capturing video data

2.A video monitor (TV monitor or computer monitor) is the most commonly used output device for displaying video data.

3. A video board (or video card), which is equipped with A/D and D/A converts. In addition to performing the basic function of A/D and D/A conversions of video board also has connectors for video camera and video monitor. The video camera, the video monitor and the video board must be compatible with each other.

4. Video editors are used to cut and paste video sequences, to add special effects and to create new video sequences from existing video sequences. They also allow superimposing of text and audio on a video sequence.


Software Requirement for Video:

The following software capabilities are highly desirable in a multimedia computer system with video facility.


1. Video Clips: This is a library of video clips from which one can select and directly import a video clip, and use it in a multimedia application, saving the time and efforts, which might otherwise be required to create a similar video clip.

2. Recording and Playback capability: It allows the user to control the recording and display of a video sequence. For example, it provides the user with options to "pause" and "replay" the video sequence.

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