Classification of media
Following are the
different classes of media,
· Perception
Medium
v How
do humans perceive information in a computer?
– Through seeing -
text, images, video.
– Through hearing -
music, noise, speech.
· Representation
Medium
v How
is the computer information encoded?
– Using formats for representing and
information.
– ASCII(text), JPEG(image), MPEG(video).
· Presentation
Medium
v Through
which medium is information delivered by the computer or introduced into the
computer?
– Via I/O tools and
devices.
– Paper, screen,
speakers (output media).
– Keyboard, mouse,
camera, microphone (input media).
· Storage
Medium
v Where
will the information be stored?
– Storage media - floppy disk, hard disk,
tape, CD-ROM etc.
· Transmission
Medium
v Over
what medium will the information are transmitted?
– Using information
carriers that enable continuous data transmission
– networks.
– Wire, coaxial cable,
fiber optics.
· Information
Exchange Medium
v Which
information carrier will be used for information exchange between different
places?
– Direct transmission
using computer networks 9
– Combined use of
storage and transmission media (e.g. electronic mail).
