Multimedia
requires large amounts of digital memory when stored in an end user’s library,
or large amounts of bandwidth when distributed over wires, glass fiber, or
airwaves on a network. The greater the bandwidth, the bigger the “pipeline,” so
more content can be delivered to end users quickly
CD-ROM,DVD
and Multimedia
CD-ROM has
become the most cost-effective distribution medium for multimedia projects: a CD-ROM
disc can be mass-produced for pennies and can contain up to 80 minutes of
full-screen video or sound. Or it can contain unique mixes of images, sounds,
text, video, and animations controlled by an authoring system to provide
unlimited user interaction. Discs can be stamped out of polycarbonate plastic
as fast as cookies on a baker’s production line and just as cheaply. Virtually
all personal computers sold today include at least a CD-ROM player, and the
software that drives these computers is commonly available on a CD-ROM
disc—applications that required inserting as many as 16 or more floppy disks
one after another are now installed from a CD-ROM without muss or fuss. Many
systems now come with a DVD-ROM player. Multilayered Digital Versatile Disc
(DVD) technology increases the capacity and multimedia capability of current
optical technology to 18GB. CD and DVD burners are used for reading discs and
for making them, too, in audio, video, and data formats. DVD authoring and
integration software allows the creation of interactive front-end menus for
films and games. In the very long term, however, CD-ROM and DVD discs are but
interim memory technologies that will be replaced by new devices that do not
require moving parts. As the data highway described below becomes more and more
pervasive and users become better “connected,” copper wire, glass fiber, and
radio/cellular technologies may prevail as the most common delivery means for
interactive multimedia files, served across the broadband Internet or from
dedicated computer farms and storage facilities.
The
Multimedia
Now that
telecommunications networks are global, and when information providers and
content owners determine the worth of their products and how to charge money
for them, information elements will ultimately link up online as distributed
resources on a data highway (actually more like a toll road), where you will
pay to acquire and use multimedia-based information. Curiously, the actual
glass fiber cables that make up much of the physical backbone of the data
highway are, in many cases, owned by railroads and pipeline companies who
simply buried the cable on existing rights of way where no special permits and
environmental reports are necessary. One railroad in the United States invested
more than a million dollars in a special cable-laying trenching car; in the
United Kingdom, there is talk of placing a fiber-optic cable backbone along the
decaying 19th-century canal and barge system. Bandwidth on these lines is
leased to others, so competing retailers such as AT&T, MCI, and Sprint may
even share the same cable. Full-text content from books and magazines is
accessible by modem and electronic link; feature movies are played at home;
real-time news reports from anywhere on earth are available; lectures from
participating universities are monitored for education credits; street maps of
any city are view able with recommendations for restaurants, in any language and
online travelogues include testimonials and video tracks. This is not science
fiction; it is happening now. For each of these interfaces or gateways to
information is a multimedia project just waiting to be developed.
World Wide Web
A system of Internet servers that support specially formatted documents.
The documents are formatted in a markup language called HTML (Hyper
Text Markup Language) that supports links to other documents, as well as graphics,
audio, and video files. This means you can jump from one document to
another simply by clicking on hot spots. Not all Internet
servers are part of the World Wide Web. There are
several applications called Web browsers that make it easy
to access the World Wide Web; Two of the most popular
being Firefox and Microsoft's Internet Explorer.
Everyone
around the world can access to multimedia. By World Wide Web we can distribute
multimedia very fast and cheap. For better distribute we can use different kind
of advertising in all websites or use banner for introduce better our product
No comments:
Post a Comment