presentation for powerpoint blogging

3. The equipment used to record images or
scenes. Used in any telecasts for the visual
presentations.
The equipment used to receive the
transmitted modulated radio-frequency
signals and produce synchronized visual
images and sound.

4. A movie projector is an opto-mechanical
device for displaying moving pictures by
projecting them on a Most of the optical and
mechanical projection screen. Elements,
except for the illumination and sound
devices, are present in movie cameras.

5. An opto-mechanical device to view
photographic slides. Slide projectors were
common in the 1950s and 1960s as a form
of entertainment.

6. A video projector takes a video signal and
projects the corresponding image on a
projection screen using a lens system. All
video projectors use a very bright light to
project the image. Video projectors are
widely used for conference room
presentations, classroom training, home
theater and live events applications.

7. Flat, printed, or drawn pictures or other
materials, as well as three-dimensional
objects, may be projected. This Machine
Operates with reflected light: the lamp
illuminates the material, & the image is
reflected by a mirror through the lens to the
screen.

8. One of the simplest visual communication
devices, easy to maintain & use. Bright lamp
source transmits light through the
translucent material to a screen quite close
to the machine.

9. Reads either films or paper, containing
micro reproductions of documents for
transmission, storage, reading, and printing.
Three formats are common: microfilm
(reels), aperture cards and microfiche (flat
sheets).
Requiring the user to carefully wind and rewind until they
have arrived at the point where the data they are looking
for is stored.

11. A piece of audio equipment is any device
designed principally to reproduce, record or
process sound. This includes microphones, radio
receivers, AV receivers, CD receivers, tape
recorders, amplifiers, mixing consoles, effects unit
and loudspeakers.