Mahir Hassan ..........................................................
Transcription
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 4|Page 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. 6|Page 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 7|Page 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 8|Page 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. 9|Page
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