Mahir Hassan ..........................................................

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Mahir Hassan ..........................................................
Lecture 01: Multimedia Computer & TV
Multimedia 4th stage
Mahir Hassan
kerabala University- Science College-Computer Science
...............................................................................................
1|Page
Lecture 01: Multimedia Computer & TV
Multimedia 4th stage
Mahir Hassan
kerabala University- Science College-Computer Science
...............................................................................................
2|Page
Lecture 01: Multimedia Computer & TV
Multimedia 4th stage
Mahir Hassan
kerabala University- Science College-Computer Science
...............................................................................................
3|Page
Lecture 01: Multimedia Computer & TV
Multimedia 4th stage
Mahir Hassan
kerabala University- Science College-Computer Science
...............................................................................................
It’s
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Lecture 01: Multimedia Computer & TV
Multimedia 4th stage
Mahir Hassan
kerabala University- Science College-Computer Science
...............................................................................................
Advanced video technology
QuickTime features advanced video compression technology called
H.264 to deliver brilliant, crisp HD video using less bandwidth and
storage. So you’ll experience pristine video quality wherever you
watch your movies or videos.
5|Page
Lecture 01: Multimedia Computer & TV
Multimedia 4th stage
Mahir Hassan
kerabala University- Science College-Computer Science
...............................................................................................
Difference between computer and Television Video
Six most common problems with computer presentation displays:
1- Display toggle
Laptops have multiple display modes. The four most common are:
1) Laptop display only,
2) External display only,
3) Duplicate the laptop display on the external display,
4) Extend the laptop display onto the external display.
The computer may not be in a mode that displays the presentation on
the external display properly.
There are two typical modes that
presenters
use.
The
duplicate
displays mode allows the laptop
and the projector/TV to have the
same content.
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Lecture 01: Multimedia Computer & TV
Multimedia 4th stage
Mahir Hassan
kerabala University- Science College-Computer Science
...............................................................................................
This is the mode that most presenters
use. Some presenters use the extend
display mode because the Presenter .
2- Cables Loose
It is amazing how many display problems are caused by loose cables
between the computer and data
projector. Make sure all cables are
securely
connected
to
the
appropriate port. With many laptops
requiring dongles to convert between
mini Display Port or USB-C ports and a VGA or HDMI cable, check
each connection is secure. Remove and re-seat each cable/connector
to make sure.
3- Projector Input Source
On data projectors that are often
used with multiple input sources,
the input source selected on the data
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Lecture 01: Multimedia Computer & TV
Multimedia 4th stage
Mahir Hassan
kerabala University- Science College-Computer Science
...............................................................................................
projector may be using a different input source than the one your
computer is connected to. There is usually a button on the top of the
projector or on the projector remote control which allows you to
toggle between the different input sources. You may have to go into
the data projector menu to change the input source on some older
projectors.
4- Power Switched On
Incredible as it seems, power being turned on is one of the common
problems. This happens because when we
turn on our laptop, if it is not plugged in,
it will still run on battery. We don’t
realize that the projector has not been
plugged into the power outlet and when
we turn it on, nothing happens. Check that the power cord is in the
wall outlet if the data projector does not turn on.
5- Projector Standby Mode On
If you plug your computer into a projector that someone else has just
been using and your display does not come up, check if the projector’s
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Lecture 01: Multimedia Computer & TV
Multimedia 4th stage
Mahir Hassan
kerabala University- Science College-Computer Science
...............................................................................................
standby mode is on. This standby mode keeps the projector fan
running but does not light the bulb. It is usually used for cooling a
projector after a presentation.
6- Projector Cover Loose
When data projectors are moved or transported, the cover can
sometimes come loose. When this happens, they will power up but not
turn on the bulb for safety reasons. Turn off the projector and check to
see that all covers are securely on. Never check for loose covers with
the projector on, you will risk being electrocuted or burned by hot
components inside the projector.
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