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OUTPUT DEVICES Projectors
There are three general ways to project the image from the computerCRT projectors are the longest established. They can take some time to set up as they use three separate projection tubes for different color channels and they must coverage accurately on the screen to get a sharp image.LCD panels are used with an overhead projector which supplies the light source. The image appears on the panel which is connected to the computer.LCD projectors are the third option. These are becoming increasingly popular. Although quite heavy they can be carried around and contain their own light source. They are also much easier to focus than the CRT projectors.
MEMORY and STORAGE Multimedia is very demanding on computer memory.
In addition to storing the program code, memory is needed to handle the images, sound and video clips.The actual requirements will depend on the contents and media.Developing a multimedia at least doubles the requirement as it is sensible to have at least one back of all the content that has need produced.
MEMORY and STORAGE
RAM- inadequate RAM (Random Access Memory) will slow down the delivery and the development of multimedia applications.Many of the Multimedia authoring tools have high RAM requirements although MPC 3 standard is 8mb, 16mb or 20mb is preferred. 32mb or 64mb is not uncommon on the Macintosh platform for development machines, particularly if a number of applications need to be opened at the same time
MEMORY and STORAGE
There is a wide range of media used for storing multimedia content:Floppy disk – are generally too small and too slow to store any serious multimedia applicationsHard disk – are more suited to multimedia as they can carry far more data than a floppy disk and have far higher transfer rates.
MEMORY and STORAGE
The increasingly large capacities of hard disks developed for server applications can be usefully adopted for multimedia development:CD-ROM – as CD-ROM players become increasingly common they provide an inexpensive means for delivering multimedia applications.CD-R whereas CD-ROM production involves a manufacturing process, CD-R enables one-off CD-ROMs to be produced using a PC and CD recorder. DVD – this storage device will become increasingly common it has greater capacity than CD-ROM (at 4.7 gigabytes) and can also play full motion video using MPEG2. It is capable of reproducing high-resolution images and high fidelity sound.