What is Multimedia ?
Multimedia is a combinations of
text, art graphics, sound, animation and video delivered by computer or the
other electronic or digitally manipulated means.
It is richly presented sensation. The thoughts and actions centers of
individuals minds or brain may be electrified by weaving
together the sensual elements of multimedia dazzling pictures and animations,
engaging sounds, compelling video clips and raw textual information.
The multimedia word springs from
the Latin words "multi" and "medium". The word multi means
many or multiple and also the word medium means middle.
Medium:
Here the medium will be defined as an intervening substance through
which something is transmitted or carried on. In in a different way medium
is means for distributions and presentation of knowledge, for
instance, graphics, speech and music.
The media are classified consistent
with the given mediums:
1.Perception medium
2. Representation medium
3. Presentation medium
4. data-storage medium
5. Transmission medium
6. Information exchange medium
1. Perception medium:
The perception of data occurs
mostly to seeing or hearing the knowledge. For the perception of knowledge through
seeing the virtual media like text, image and video are use. Where as for
perception of knowledge through hearing auditory media like music,
noise and speech .
2. Representation medium:
It is a medium which provides the
thought about how the knowledge are represented internally within
the computer. i.e. how it's coded there are various
formats accustomed represent media information in an exceedingly computer.
For example:
a) Text characters are coded in ASCII or EBCDIC (extended code for
decimal interchange code).
b) An audio stream will be represented
using simple PCM(pulse coding method) With a linear quantization of 16 bits per
sample.
c) a picture may be coded
in JPEG (joint photographic expert group)format.
d) A combine audio, video sequence may be coded in computer in
MPEG(moving picture expert group) format.
3. Presentation medium:
It refers to the tools and devices
for the input and output of knowledge for instance paper, screen
and speaker for computer are output media, where as keyboard, mouse, camera,
and microphone are input media. Using this media the knowledge are
presented before of the audience or from one system to a
different system.
4. Storage medium:
Where the data is
preserved for stored for future used as an example micro film, disk,
hard disk, CD, and even paper also.
5. Transmission medium:
Different information carried that
enable continuous data transmission media. the data is transmitted
over networks, which uses wire, cable transmission like co-axial and
fiber optics likewise as free air space (wireless) transmission.
6. Information exchange medium:
Which information carries are visiting be
used for information exchange between different places. Information can flow
through intermediate storage media, where the medium is transported
outside of system to the destination, through mechanism using
network, or to through the combine, usages of storage and transmission media.
